🕷️ Crawler Inspector

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Raw Queries and Responses

1. Shard Calculation

Query:

Response:

Calculated Shard: 37 (from laksa149)

2. Crawled Status Check

Query:

curl -X POST \
  'http://laksa037.int.ahrefs:8124/' \
  -H 'Content-Type: text/plain' \
  -H 'X-ClickHouse-Database: crawler3' \
  -H 'Authorization: Basic YXBpOg==' \
  -d 'SELECT getAhrefsURLFromUnparsed(src_unparsed) AS found_url, ifNull(toUnixTimestamp(download_stamp), 0) AS crawl_time, ifNull(toUnixTimestamp(props_url_first_seen), 0) AS first_indexed_time, download_http_code AS http_code, src_unparsed AS src_unparsed, src_root_hash AS src_root_hash, history_drop_reason AS history_drop_reason, meta_title AS meta_title, meta_descriptions AS meta_descriptions, attrs_boilerpipe_text AS attrs_boilerpipe_text, attrs_markdown AS attrs_markdown, attrs_readable_markdown AS attrs_readable_markdown, meta_canonical AS meta_canonical FROM crawler3.page_info_local FINAL PREWHERE (src_root_hash, src_unparsed) IN ((getAhrefsRootHashFromUnparsed(getAhrefsUnparsedNoserviceFromURL(\'https://www.marthastewart.com/does-baking-soda-deodorize-refrigerators-11921821\')), getAhrefsUnparsedNoserviceFromURL(\'https://www.marthastewart.com/does-baking-soda-deodorize-refrigerators-11921821\'))) FORMAT JSONEachRow'

Response:

{"found_url":"https:\/\/www.marthastewart.com\/does-baking-soda-deodorize-refrigerators-11921821","crawl_time":1776382072,"first_indexed_time":1773171095,"http_code":200,"src_unparsed":"com,marthastewart!www,\/does-baking-soda-deodorize-refrigerators-11921821 s443","src_root_hash":"16724559291028802437","history_drop_reason":null,"meta_title":"Does Baking Soda Really Deodorize Your Fridge?","meta_descriptions":["Does baking soda really keep your fridge fresh? We break down the science behind the classic box-in-the-back trick—and whether it actually works."],"attrs_boilerpipe_text":"It’s a refrigerator staple, and your grandmother likely swore by it—but does keeping a box of\nbaking soda in the fridge\nreally\nneutralize smells\n? The old-school trick's singular ingredient and near-effortless method may have you doubting its effectiveness, but we're here to break down the science behind the classic and share the tips to make it work for you.\nDani Dominguez\n, MS, RDN, registered dietitian nutritionist and founder of\nSunBright Wellness\nTrish Duarte\n, president and CEO of\nMaidPro\nof Temecula\nWhy Baking Soda Works as a Fridge Deodorizer\nIf you've ever doubted\nbaking soda’s powers\n, look to the science. One study that evaluated baking soda in food waste containers found that the containers with baking soda had 70 percent lower odor concentration than the controls.\n“Other research has explored its use in food packaging, including fermented foods like kimchi, and observed measurable reductions in odor intensity when baking soda was incorporated,” explains Dani Dominguez, MS, RDN, a registered dietitian nutritionist.\nOK, so studies prove that baking soda\nis\nan effective deodorizer—but\nwhy\nis that? \"Baking soda, also known as sodium bicarbonate, neutralizes odors through acid-base chemistry,\" says Dominguez. \"This crystalline salt is amphoteric, meaning it can react with both acidic and basic compounds.\"\nThis is where the chemistry comes into play: \"Because many unpleasant odors are caused by volatile molecules that are either acidic or basic in nature, baking soda can chemically interact with them to neutralize them,\" says Dominguez. \"In doing so, it can reduce their volatility, making the smell less noticeable.\"\nThe Best Way to Use Baking Soda in Your Fridge\nThat trusty box of baking soda in your fridge is effective—but the placement of the baking soda and the amount relative to the size of your refrigerator’s interior also matter for best results. “We might be tempted to shove an open box to the back of the shelf and call it a day, but for baking soda to really work, it needs airflow,” says cleaning expert Trish Duarte. “A mostly closed box is like a guard stuck in a closet. It can’t see or stop an odor-causing thief.”\nDuarte recommends pouring a cup of baking soda into a shallow, wide container. If you prefer to keep the powder in the box, open the top fully and give it a gentle shake once a week to bring fresh powder to the surface. “Replace the whole box every thirty days,” she adds. “Baking soda can only handle so much. After a few weeks, it starts to lose its odor-fighting abilities.” \nFor stronger smells, Duarte suggests placing a small bowl of activated charcoal next to the baking soda. “Charcoal is more porous than baking soda and traps odor molecules like a magnet, grabbing what baking soda can’t,” she says.\nRemember that baking soda isn't a miracle deodorizer for every household surface. “While it’s tempting to sprinkle baking soda everywhere—including carpets, mattresses, and upholstery—it’s actually better to avoid that because it can work its way deep into fibers and become nearly impossible to remove,” Duarte says. “Over time, as you walk or sit, they act like tiny abrasives, causing friction that can wear down the material.”\nKeeping Your Fridge Odor-Free\nUsing fresh baking soda in the fridge is a great way to deodorize, but it won’t deter odors or kill the source, like a sticky spill or old food. “For a\nclean and healthy fridge\n, start fresh,” says Duarte. “Start with warm, soapy water to remove spills and residue. Use a\ndiluted vinegar solution\nif you need extra help with buildup. Let it dry completely before placing your baking soda to maintain freshness.”\nKeeping the fridge odor-free requires regular cleaning,\nkeeping food in sealed containers,\nand tossing spoiled ingredients. “Managing moisture levels is also important, as excess humidity can contribute to mold or bacterial growth that produces odors,” Dominguez adds. “Baking soda serves as a supportive tool rather than a substitute for routine maintenance.","attrs_markdown":"\n\n[Skip to content](https:\/\/www.marthastewart.com\/does-baking-soda-deodorize-refrigerators-11921821#main)\n\n[Martha Stewart](https:\/\/www.marthastewart.com\/)\n\n- Please fill out this field.\n- [Log In](https:\/\/www.marthastewart.com\/authentication\/login?regSource=10233&relativeRedirectUrl=%2Fdoes-baking-soda-deodorize-refrigerators-11921821)\n- My Account\n  - [Log Out](https:\/\/www.marthastewart.com\/authentication\/logout?relativeRedirectUrl=%2Fdoes-baking-soda-deodorize-refrigerators-11921821)\n  - [Settings](https:\/\/www.marthastewart.com\/account\/settings)\n- [Martha's Blog](https:\/\/www.themarthablog.com\/)\n- [Newsletters](https:\/\/www.marthastewart.com\/does-baking-soda-deodorize-refrigerators-11921821)\n- [Sweepstakes](https:\/\/www.marthastewart.com\/sweepstakes)\n\nPlease fill out this field.\n\n- [Food](https:\/\/www.marthastewart.com\/1509043\/food-cooking)\n  Food\n  \n  - 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[Recall News](https:\/\/www.marthastewart.com\/recall-news-8729068)\n  - [View All](https:\/\/www.marthastewart.com\/1543773\/news)\n\n[About Us](https:\/\/www.marthastewart.com\/about-marthastewart-com-7104054)\n\n# Does Baking Soda Really Deodorize Your Fridge? Experts Explain the Science\nThe science behind the box in the back.\n\nBy\n\n[Melissa Kravitz Hoeffner](https:\/\/www.marthastewart.com\/author\/melissa-kravitz-hoeffner)\n\n![Melissa Kravitz Hoeffner]()\n\n![Melissa Kravitz Hoeffner](https:\/\/www.marthastewart.com\/thmb\/aUKVlgPn-oYFrOPKWaF1_EeVZCg=\/200x200\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/MBKHheadshot-385ea7dbfd944abbad375701c86a0c6b.jpg)\n\n[Melissa Kravitz Hoeffner](https:\/\/www.marthastewart.com\/author\/melissa-kravitz-hoeffner)\n\nMelissa is a writer and recipe developer living in Brooklyn. She majored in Creative Writing at Columbia University and has worked as a journalist in New York City for over a decade.\n\n[Editorial Guidelines](https:\/\/www.marthastewart.com\/about-marthastewart-com-7104054#-toc-editorial-guidelines)\n\nPublished on March 10, 2026\n\nIn This Article\n\nView All\n\nIn This Article\n\n- [Why Baking Soda Works](https:\/\/www.marthastewart.com\/does-baking-soda-deodorize-refrigerators-11921821#toc-why-baking-soda-works-as-a-fridge-deodorizer)\n- [The Best Way to Use It](https:\/\/www.marthastewart.com\/does-baking-soda-deodorize-refrigerators-11921821#toc-the-best-way-to-use-baking-soda-in-your-fridge)\n- [Keeping Your Fridge Odor-Free](https:\/\/www.marthastewart.com\/does-baking-soda-deodorize-refrigerators-11921821#toc-keeping-your-fridge-odor-free)\n\nClose\n\n![A view of a refrigerator shelf with yogurt eggs in a holder a lemon and other food items](https:\/\/www.marthastewart.com\/thmb\/USOHzVJknvADOWCjxSsuVcX7oFw=\/1500x0\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/GettyImages-532203239-4c88d3c376c3403bbc6336a5ee282cc3.jpg)\n\n![A view of a refrigerator shelf with yogurt eggs in a holder a lemon and other food items](https:\/\/www.marthastewart.com\/thmb\/USOHzVJknvADOWCjxSsuVcX7oFw=\/1500x0\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/GettyImages-532203239-4c88d3c376c3403bbc6336a5ee282cc3.jpg)\n\nCredit:\n\nicarmen13 \/ Getty Images\n\nIt’s a refrigerator staple, and your grandmother likely swore by it—but does keeping a box of [baking soda in the fridge](https:\/\/www.marthastewart.com\/cleaning-with-baking-soda-8363193) really [neutralize smells](https:\/\/www.marthastewart.com\/1146443\/diy-natural-air-fresheners)? The old-school trick's singular ingredient and near-effortless method may have you doubting its effectiveness, but we're here to break down the science behind the classic and share the tips to make it work for you.\n\n- [**Dani Dominguez**](https:\/\/www.linkedin.com\/in\/dominguez-danielle\/), MS, RDN, registered dietitian nutritionist and founder of\n  [SunBright Wellness](http:\/\/www.sunbrightwellness.com\/)\n- **Trish Duarte**, president and CEO of\n  [MaidPro](https:\/\/www.maidpro.com\/)\n  of Temecula\n\n[9 Things to Never Clean With Baking Soda, According to Cleaning Professionals](https:\/\/www.marthastewart.com\/things-to-never-clean-with-baking-soda-11711998)\n\n## Why Baking Soda Works as a Fridge Deodorizer\nIf you've ever doubted [baking soda’s powers](https:\/\/www.marthastewart.com\/how-to-use-baking-soda-in-the-garden-11732918), look to the science. One study that evaluated baking soda in food waste containers found that the containers with baking soda had 70 percent lower odor concentration than the controls.\n\n“Other research has explored its use in food packaging, including fermented foods like kimchi, and observed measurable reductions in odor intensity when baking soda was incorporated,” explains Dani Dominguez, MS, RDN, a registered dietitian nutritionist.\n\nOK, so studies prove that baking soda *is* an effective deodorizer—but *why* is that? \"Baking soda, also known as sodium bicarbonate, neutralizes odors through acid-base chemistry,\" says Dominguez. \"This crystalline salt is amphoteric, meaning it can react with both acidic and basic compounds.\"\n\nThis is where the chemistry comes into play: \"Because many unpleasant odors are caused by volatile molecules that are either acidic or basic in nature, baking soda can chemically interact with them to neutralize them,\" says Dominguez. \"In doing so, it can reduce their volatility, making the smell less noticeable.\"\n\n## The Best Way to Use Baking Soda in Your Fridge\nThat trusty box of baking soda in your fridge is effective—but the placement of the baking soda and the amount relative to the size of your refrigerator’s interior also matter for best results. “We might be tempted to shove an open box to the back of the shelf and call it a day, but for baking soda to really work, it needs airflow,” says cleaning expert Trish Duarte. “A mostly closed box is like a guard stuck in a closet. It can’t see or stop an odor-causing thief.”\n\nDuarte recommends pouring a cup of baking soda into a shallow, wide container. If you prefer to keep the powder in the box, open the top fully and give it a gentle shake once a week to bring fresh powder to the surface. “Replace the whole box every thirty days,” she adds. “Baking soda can only handle so much. After a few weeks, it starts to lose its odor-fighting abilities.”\n\nFor stronger smells, Duarte suggests placing a small bowl of activated charcoal next to the baking soda. “Charcoal is more porous than baking soda and traps odor molecules like a magnet, grabbing what baking soda can’t,” she says.\n\nRemember that baking soda isn't a miracle deodorizer for every household surface. “While it’s tempting to sprinkle baking soda everywhere—including carpets, mattresses, and upholstery—it’s actually better to avoid that because it can work its way deep into fibers and become nearly impossible to remove,” Duarte says. “Over time, as you walk or sit, they act like tiny abrasives, causing friction that can wear down the material.”\n\n[7 Old-Fashioned Cleaning Tips Experts Still Swear By](https:\/\/www.marthastewart.com\/old-fashioned-cleaning-tips-11914687)\n\n## Keeping Your Fridge Odor-Free\nUsing fresh baking soda in the fridge is a great way to deodorize, but it won’t deter odors or kill the source, like a sticky spill or old food. “For a [clean and healthy fridge](https:\/\/www.marthastewart.com\/how-to-clean-refrigerator-7964504), start fresh,” says Duarte. “Start with warm, soapy water to remove spills and residue. Use a [diluted vinegar solution](https:\/\/www.marthastewart.com\/vinegar-uses-8350561) if you need extra help with buildup. Let it dry completely before placing your baking soda to maintain freshness.”\n\nKeeping the fridge odor-free requires regular cleaning, [keeping food in sealed containers,](https:\/\/www.marthastewart.com\/8382184\/food-storage-mistakes) and tossing spoiled ingredients. “Managing moisture levels is also important, as excess humidity can contribute to mold or bacterial growth that produces odors,” Dominguez adds. “Baking soda serves as a supportive tool rather than a substitute for routine maintenance.\n\nExplore more:\n\n- [Cleaning & Organizing](https:\/\/www.marthastewart.com\/1502090\/cleaning)\n- [Kitchen Cleaning Tips](https:\/\/www.marthastewart.com\/1513164\/kitchen-cleaning-tips)\n\nWas this page helpful?\n\nThanks for your feedback\\!\n\nTell us why\\!\n\nOther\n\nSources\n\nMartha Stewart is committed to using high-quality, reputable sources—including peer-reviewed studies—to support the facts in our articles. Read about our [editorial policies and standards](https:\/\/www.marthastewart.com\/about-marthastewart-com-7104054#toc-editorial-guidelines) to learn more about how we fact check our content for accuracy.\n\n1. N. Qamaruz-Zaman, Y. Kun, R.-N. Rosli, Preliminary observation on the effect of baking soda volume on controlling odour from discarded organic waste, Waste Management, Volume 35, <https:\/\/doi.org\/10.1016\/j.wasman.2014.09.017>\n2. Jeong S, Yoo S. Preparation and properties of sodium bicarbonate-incorporated LDPE films with deodorizing function for kimchi packaging. *Packag Technol Sci*. 2017; 30: 781–790. <https:\/\/doi.org\/10.1002\/pts.2333>\n\n## Related Articles\n[![A modern refrigerator positioned in a kitchen next to cabinetry and a countertop with cutting boards]() ![A modern refrigerator positioned in a kitchen next to cabinetry and a countertop with cutting boards](https:\/\/www.marthastewart.com\/thmb\/Yipj37DARGoT9kT5r6eHHSIWVsw=\/282x188\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/ms-fr-dge-door-11e17191e4084942819926b8f99d020e.jpg) How to Clean the Rubber Seal on Your Refrigerator Door, According to Pros](https:\/\/www.marthastewart.com\/how-to-clean-refrigerator-gasket-11893034)\n\n[![A coffee machine on a kitchen counter with a jar of ground coffee and a spoon nearby]() ![A coffee machine on a kitchen counter with a jar of ground coffee and a spoon nearby](https:\/\/www.marthastewart.com\/thmb\/Lq2d4JmGzEGkqQsICixR8L2qKWY=\/282x188\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/ms-coffee-GettyImages-2185079091-4bae6f120d344afc9510f3558def5ac6.jpg) Can You Clean a Coffee Maker With Baking Soda? 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Glass](https:\/\/www.marthastewart.com\/oven-glass-stains-11890174)\n\n[![Close up of female human hand in kitchen cleaning stove with blue cloth]() ![Close up of female human hand in kitchen cleaning stove with blue cloth](https:\/\/www.marthastewart.com\/thmb\/_PDh5Ats-qKwcU11HGjBSARDfgY=\/282x188\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/GettyImages-1296117658-10f1bff7cb8e4f34bf06179a09031e72.jpg) Your Favorite Cleaning Products Might Be Ruining Your Glass Stovetop](https:\/\/www.marthastewart.com\/cleaning-products-that-damage-glass-stovetops-11841386)\n\n[![A person holds a basket of cooked potato pieces next to an air fryer on a wooden kitchen counter]() ![A person holds a basket of cooked potato pieces next to an air fryer on a wooden kitchen counter](https:\/\/www.marthastewart.com\/thmb\/LiDWM7qSGPzj7jYw1lEk7VLvByE=\/282x188\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/GettyImages-2204596756-aa398cc952a14162aa07b34174bfbd8e.jpg) How to Degrease an Air Fryer to Remove Stubborn Stickiness and Old Odors Fast](https:\/\/www.marthastewart.com\/how-to-degrease-air-fryer-11885908)\n\n[![Farmhousestyle kitchen sink with a towel draped over the front surrounded by a bright kitchen with white countertops]() ![Farmhousestyle kitchen sink with a towel draped over the front surrounded by a bright kitchen with white countertops](https:\/\/www.marthastewart.com\/thmb\/iXkkiexAsGX9qYqmj4f0oOYd8ik=\/282x188\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/ms-kitchen-sink-b9db834cc89949d381c58281ca14a5e9.jpg) How to Clean Your Kitchen Sink Drain—and Stop Clogs and Bad Smells for Good](https:\/\/www.marthastewart.com\/how-to-clean-a-kitchen-sink-drain-11860405)\n\n[![cleaning oven]() ![cleaning oven](https:\/\/www.marthastewart.com\/thmb\/yPDFd6LzYdihzedsxDTRMxuvkPw=\/282x188\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/GettyImages-2197812526-97d28a2f0c6246e69f6e712c061d8f34.jpg) 5 Easy Ways to Degrease Your Oven Fast, According to Experts](https:\/\/www.marthastewart.com\/easy-ways-to-degrease-oven-11887765)\n\n[![Stovetop with a kettle heating on a burner a measuring cup on a countertop nearby and kitchen utensils in a container]() ![Stovetop with a kettle heating on a burner a measuring cup on a countertop nearby and kitchen utensils in a container](https:\/\/www.marthastewart.com\/thmb\/a3oD2wW2_JlbeLMyypjz32xbVCs=\/282x188\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/GettyImages-801441692-96e1d0ae50544bb7ad0ec1316031dd59.jpg) How to Clean the Gap Between Your Stove and Counter—and Keep It Grime-Free for Good](https:\/\/www.marthastewart.com\/how-to-clean-between-stove-and-counter-11860131)\n\n[![A bowl of water with lemon slices on a microwave turntable]() ![A bowl of water with lemon slices on a microwave turntable](https:\/\/www.marthastewart.com\/thmb\/WLI24aJjSPI88NwjU67DJgnh1Ko=\/282x188\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/lemon-water-in-microwave-fb3c7a828b3844e9b7d73b3ebc2b65bf.jpg) The Right Way to Steam Clean a Microwave—in Mere Minutes](https:\/\/www.marthastewart.com\/how-to-steam-clean-a-microwave-11911644)\n\n[![Modern kitchen with large stainless steel freezer refrigerator]() ![Modern kitchen with large stainless steel freezer refrigerator](https:\/\/www.marthastewart.com\/thmb\/8xvsV9lVQuLh_U5vMdUi39vOMIM=\/282x188\/filters:no_upscale\\(\\):max_bytes\\(150000\\):strip_icc\\(\\)\/ways-to-organize-freezer-use-more-efficiently-getty-0723-60d3e5d3f1cf4356b13b59f4d370e2b1.jpg) The Secret to Smudge-Free Stainless Steel (and a Cleaner-Looking Kitchen)](https:\/\/www.marthastewart.com\/the-secret-to-smudge-free-stainless-steel-11836592)\n\n[Martha Stewart](https:\/\/www.marthastewart.com\/)\n\n[Newsletters](https:\/\/www.marthastewart.com\/does-baking-soda-deodorize-refrigerators-11921821)\n\n## Follow Us\n\n- [Food](https:\/\/www.marthastewart.com\/1509043\/food-cooking)\n- [Holidays](https:\/\/www.marthastewart.com\/1505740\/holiday-planning-and-ideas)\n- [Entertaining](https:\/\/www.marthastewart.com\/1505862\/entertaining)\n- [Home](https:\/\/www.marthastewart.com\/1509047\/home)\n- [Gardening](https:\/\/www.marthastewart.com\/1504574\/gardening)\n- [Cleaning & Organizing](https:\/\/www.marthastewart.com\/1502090\/cleaning)\n- [Weddings](https:\/\/www.marthastewart.com\/6417\/weddings)\n- [DIY](https:\/\/www.marthastewart.com\/1502461\/diy-projects-crafts)\n- [Beauty & Wellness](https:\/\/www.marthastewart.com\/1504587\/beauty)\n- [Living](https:\/\/www.marthastewart.com\/1537291\/life)\n- [News](https:\/\/www.marthastewart.com\/1543773\/news)\n- [Shopping](https:\/\/www.marthastewart.com\/8372965\/shopping)\n\n- [About 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The old-school trick's singular ingredient and near-effortless method may have you doubting its effectiveness, but we're here to break down the science behind the classic and share the tips to make it work for you.\n\n- [**Dani Dominguez**](https:\/\/www.linkedin.com\/in\/dominguez-danielle\/), MS, RDN, registered dietitian nutritionist and founder of\n  [SunBright Wellness](http:\/\/www.sunbrightwellness.com\/)\n- **Trish Duarte**, president and CEO of\n  [MaidPro](https:\/\/www.maidpro.com\/)\n  of Temecula\n## Why Baking Soda Works as a Fridge Deodorizer\nIf you've ever doubted [baking soda’s powers](https:\/\/www.marthastewart.com\/how-to-use-baking-soda-in-the-garden-11732918), look to the science. One study that evaluated baking soda in food waste containers found that the containers with baking soda had 70 percent lower odor concentration than the controls.\n\n“Other research has explored its use in food packaging, including fermented foods like kimchi, and observed measurable reductions in odor intensity when baking soda was incorporated,” explains Dani Dominguez, MS, RDN, a registered dietitian nutritionist.\n\nOK, so studies prove that baking soda *is* an effective deodorizer—but *why* is that? \"Baking soda, also known as sodium bicarbonate, neutralizes odors through acid-base chemistry,\" says Dominguez. \"This crystalline salt is amphoteric, meaning it can react with both acidic and basic compounds.\"\n\nThis is where the chemistry comes into play: \"Because many unpleasant odors are caused by volatile molecules that are either acidic or basic in nature, baking soda can chemically interact with them to neutralize them,\" says Dominguez. \"In doing so, it can reduce their volatility, making the smell less noticeable.\"\n\n## The Best Way to Use Baking Soda in Your Fridge\nThat trusty box of baking soda in your fridge is effective—but the placement of the baking soda and the amount relative to the size of your refrigerator’s interior also matter for best results. “We might be tempted to shove an open box to the back of the shelf and call it a day, but for baking soda to really work, it needs airflow,” says cleaning expert Trish Duarte. “A mostly closed box is like a guard stuck in a closet. It can’t see or stop an odor-causing thief.”\n\nDuarte recommends pouring a cup of baking soda into a shallow, wide container. If you prefer to keep the powder in the box, open the top fully and give it a gentle shake once a week to bring fresh powder to the surface. “Replace the whole box every thirty days,” she adds. “Baking soda can only handle so much. After a few weeks, it starts to lose its odor-fighting abilities.”\n\nFor stronger smells, Duarte suggests placing a small bowl of activated charcoal next to the baking soda. “Charcoal is more porous than baking soda and traps odor molecules like a magnet, grabbing what baking soda can’t,” she says.\n\nRemember that baking soda isn't a miracle deodorizer for every household surface. “While it’s tempting to sprinkle baking soda everywhere—including carpets, mattresses, and upholstery—it’s actually better to avoid that because it can work its way deep into fibers and become nearly impossible to remove,” Duarte says. “Over time, as you walk or sit, they act like tiny abrasives, causing friction that can wear down the material.”\n\n## Keeping Your Fridge Odor-Free\nUsing fresh baking soda in the fridge is a great way to deodorize, but it won’t deter odors or kill the source, like a sticky spill or old food. “For a [clean and healthy fridge](https:\/\/www.marthastewart.com\/how-to-clean-refrigerator-7964504), start fresh,” says Duarte. “Start with warm, soapy water to remove spills and residue. Use a [diluted vinegar solution](https:\/\/www.marthastewart.com\/vinegar-uses-8350561) if you need extra help with buildup. Let it dry completely before placing your baking soda to maintain freshness.”\n\nKeeping the fridge odor-free requires regular cleaning, [keeping food in sealed containers,](https:\/\/www.marthastewart.com\/8382184\/food-storage-mistakes) and tossing spoiled ingredients. “Managing moisture levels is also important, as excess humidity can contribute to mold or bacterial growth that produces odors,” Dominguez adds. “Baking soda serves as a supportive tool rather than a substitute for routine maintenance.","meta_canonical":null}

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Boilerpipe Text	It’s a refrigerator staple, and your grandmother likely swore by it—but does keeping a box of baking soda in the fridge really neutralize smells ? The old-school trick's singular ingredient and near-effortless method may have you doubting its effectiveness, but we're here to break down the science behind the classic and share the tips to make it work for you. Dani Dominguez , MS, RDN, registered dietitian nutritionist and founder of SunBright Wellness Trish Duarte , president and CEO of MaidPro of Temecula Why Baking Soda Works as a Fridge Deodorizer If you've ever doubted baking soda’s powers , look to the science. One study that evaluated baking soda in food waste containers found that the containers with baking soda had 70 percent lower odor concentration than the controls. “Other research has explored its use in food packaging, including fermented foods like kimchi, and observed measurable reductions in odor intensity when baking soda was incorporated,” explains Dani Dominguez, MS, RDN, a registered dietitian nutritionist. OK, so studies prove that baking soda is an effective deodorizer—but why is that? "Baking soda, also known as sodium bicarbonate, neutralizes odors through acid-base chemistry," says Dominguez. "This crystalline salt is amphoteric, meaning it can react with both acidic and basic compounds." This is where the chemistry comes into play: "Because many unpleasant odors are caused by volatile molecules that are either acidic or basic in nature, baking soda can chemically interact with them to neutralize them," says Dominguez. "In doing so, it can reduce their volatility, making the smell less noticeable." The Best Way to Use Baking Soda in Your Fridge That trusty box of baking soda in your fridge is effective—but the placement of the baking soda and the amount relative to the size of your refrigerator’s interior also matter for best results. “We might be tempted to shove an open box to the back of the shelf and call it a day, but for baking soda to really work, it needs airflow,” says cleaning expert Trish Duarte. “A mostly closed box is like a guard stuck in a closet. It can’t see or stop an odor-causing thief.” Duarte recommends pouring a cup of baking soda into a shallow, wide container. If you prefer to keep the powder in the box, open the top fully and give it a gentle shake once a week to bring fresh powder to the surface. “Replace the whole box every thirty days,” she adds. “Baking soda can only handle so much. After a few weeks, it starts to lose its odor-fighting abilities.” For stronger smells, Duarte suggests placing a small bowl of activated charcoal next to the baking soda. “Charcoal is more porous than baking soda and traps odor molecules like a magnet, grabbing what baking soda can’t,” she says. Remember that baking soda isn't a miracle deodorizer for every household surface. “While it’s tempting to sprinkle baking soda everywhere—including carpets, mattresses, and upholstery—it’s actually better to avoid that because it can work its way deep into fibers and become nearly impossible to remove,” Duarte says. “Over time, as you walk or sit, they act like tiny abrasives, causing friction that can wear down the material.” Keeping Your Fridge Odor-Free Using fresh baking soda in the fridge is a great way to deodorize, but it won’t deter odors or kill the source, like a sticky spill or old food. “For a clean and healthy fridge , start fresh,” says Duarte. “Start with warm, soapy water to remove spills and residue. Use a diluted vinegar solution if you need extra help with buildup. Let it dry completely before placing your baking soda to maintain freshness.” Keeping the fridge odor-free requires regular cleaning, keeping food in sealed containers, and tossing spoiled ingredients. “Managing moisture levels is also important, as excess humidity can contribute to mold or bacterial growth that produces odors,” Dominguez adds. “Baking soda serves as a supportive tool rather than a substitute for routine maintenance.
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Experts Explain the Science The science behind the box in the back. By [Melissa Kravitz Hoeffner](https://www.marthastewart.com/author/melissa-kravitz-hoeffner) ![Melissa Kravitz Hoeffner]() ![Melissa Kravitz Hoeffner](https://www.marthastewart.com/thmb/aUKVlgPn-oYFrOPKWaF1_EeVZCg=/200x200/filters:no_upscale\(\):max_bytes\(150000\):strip_icc\(\)/MBKHheadshot-385ea7dbfd944abbad375701c86a0c6b.jpg) [Melissa Kravitz Hoeffner](https://www.marthastewart.com/author/melissa-kravitz-hoeffner) Melissa is a writer and recipe developer living in Brooklyn. She majored in Creative Writing at Columbia University and has worked as a journalist in New York City for over a decade. [Editorial Guidelines](https://www.marthastewart.com/about-marthastewart-com-7104054#-toc-editorial-guidelines) Published on March 10, 2026 In This Article View All In This Article - [Why Baking Soda Works](https://www.marthastewart.com/does-baking-soda-deodorize-refrigerators-11921821#toc-why-baking-soda-works-as-a-fridge-deodorizer) - [The Best Way to Use It](https://www.marthastewart.com/does-baking-soda-deodorize-refrigerators-11921821#toc-the-best-way-to-use-baking-soda-in-your-fridge) - [Keeping Your Fridge Odor-Free](https://www.marthastewart.com/does-baking-soda-deodorize-refrigerators-11921821#toc-keeping-your-fridge-odor-free) Close ![A view of a refrigerator shelf with yogurt eggs in a holder a lemon and other food items](https://www.marthastewart.com/thmb/USOHzVJknvADOWCjxSsuVcX7oFw=/1500x0/filters:no_upscale\(\):max_bytes\(150000\):strip_icc\(\)/GettyImages-532203239-4c88d3c376c3403bbc6336a5ee282cc3.jpg) ![A view of a refrigerator shelf with yogurt eggs in a holder a lemon and other food items](https://www.marthastewart.com/thmb/USOHzVJknvADOWCjxSsuVcX7oFw=/1500x0/filters:no_upscale\(\):max_bytes\(150000\):strip_icc\(\)/GettyImages-532203239-4c88d3c376c3403bbc6336a5ee282cc3.jpg) Credit: icarmen13 / Getty Images It’s a refrigerator staple, and your grandmother likely swore by it—but does keeping a box of [baking soda in the fridge](https://www.marthastewart.com/cleaning-with-baking-soda-8363193) really [neutralize smells](https://www.marthastewart.com/1146443/diy-natural-air-fresheners)? The old-school trick's singular ingredient and near-effortless method may have you doubting its effectiveness, but we're here to break down the science behind the classic and share the tips to make it work for you. - [Dani Dominguez](https://www.linkedin.com/in/dominguez-danielle/), MS, RDN, registered dietitian nutritionist and founder of [SunBright Wellness](http://www.sunbrightwellness.com/) - Trish Duarte, president and CEO of [MaidPro](https://www.maidpro.com/) of Temecula [9 Things to Never Clean With Baking Soda, According to Cleaning Professionals](https://www.marthastewart.com/things-to-never-clean-with-baking-soda-11711998) ## Why Baking Soda Works as a Fridge Deodorizer If you've ever doubted [baking soda’s powers](https://www.marthastewart.com/how-to-use-baking-soda-in-the-garden-11732918), look to the science. One study that evaluated baking soda in food waste containers found that the containers with baking soda had 70 percent lower odor concentration than the controls. “Other research has explored its use in food packaging, including fermented foods like kimchi, and observed measurable reductions in odor intensity when baking soda was incorporated,” explains Dani Dominguez, MS, RDN, a registered dietitian nutritionist. OK, so studies prove that baking soda is an effective deodorizer—but why is that? "Baking soda, also known as sodium bicarbonate, neutralizes odors through acid-base chemistry," says Dominguez. "This crystalline salt is amphoteric, meaning it can react with both acidic and basic compounds." This is where the chemistry comes into play: "Because many unpleasant odors are caused by volatile molecules that are either acidic or basic in nature, baking soda can chemically interact with them to neutralize them," says Dominguez. "In doing so, it can reduce their volatility, making the smell less noticeable." ## The Best Way to Use Baking Soda in Your Fridge That trusty box of baking soda in your fridge is effective—but the placement of the baking soda and the amount relative to the size of your refrigerator’s interior also matter for best results. “We might be tempted to shove an open box to the back of the shelf and call it a day, but for baking soda to really work, it needs airflow,” says cleaning expert Trish Duarte. “A mostly closed box is like a guard stuck in a closet. It can’t see or stop an odor-causing thief.” Duarte recommends pouring a cup of baking soda into a shallow, wide container. If you prefer to keep the powder in the box, open the top fully and give it a gentle shake once a week to bring fresh powder to the surface. “Replace the whole box every thirty days,” she adds. “Baking soda can only handle so much. After a few weeks, it starts to lose its odor-fighting abilities.” For stronger smells, Duarte suggests placing a small bowl of activated charcoal next to the baking soda. “Charcoal is more porous than baking soda and traps odor molecules like a magnet, grabbing what baking soda can’t,” she says. Remember that baking soda isn't a miracle deodorizer for every household surface. “While it’s tempting to sprinkle baking soda everywhere—including carpets, mattresses, and upholstery—it’s actually better to avoid that because it can work its way deep into fibers and become nearly impossible to remove,” Duarte says. “Over time, as you walk or sit, they act like tiny abrasives, causing friction that can wear down the material.” [7 Old-Fashioned Cleaning Tips Experts Still Swear By](https://www.marthastewart.com/old-fashioned-cleaning-tips-11914687) ## Keeping Your Fridge Odor-Free Using fresh baking soda in the fridge is a great way to deodorize, but it won’t deter odors or kill the source, like a sticky spill or old food. “For a [clean and healthy fridge](https://www.marthastewart.com/how-to-clean-refrigerator-7964504), start fresh,” says Duarte. “Start with warm, soapy water to remove spills and residue. Use a [diluted vinegar solution](https://www.marthastewart.com/vinegar-uses-8350561) if you need extra help with buildup. Let it dry completely before placing your baking soda to maintain freshness.” Keeping the fridge odor-free requires regular cleaning, [keeping food in sealed containers,](https://www.marthastewart.com/8382184/food-storage-mistakes) and tossing spoiled ingredients. “Managing moisture levels is also important, as excess humidity can contribute to mold or bacterial growth that produces odors,” Dominguez adds. “Baking soda serves as a supportive tool rather than a substitute for routine maintenance. Explore more: - [Cleaning & Organizing](https://www.marthastewart.com/1502090/cleaning) - [Kitchen Cleaning Tips](https://www.marthastewart.com/1513164/kitchen-cleaning-tips) Was this page helpful? Thanks for your feedback\! Tell us why\! Other Sources Martha Stewart is committed to using high-quality, reputable sources—including peer-reviewed studies—to support the facts in our articles. Read about our [editorial policies and standards](https://www.marthastewart.com/about-marthastewart-com-7104054#toc-editorial-guidelines) to learn more about how we fact check our content for accuracy. 1. N. Qamaruz-Zaman, Y. Kun, R.-N. Rosli, Preliminary observation on the effect of baking soda volume on controlling odour from discarded organic waste, Waste Management, Volume 35, <https://doi.org/10.1016/j.wasman.2014.09.017> 2. Jeong S, Yoo S. Preparation and properties of sodium bicarbonate-incorporated LDPE films with deodorizing function for kimchi packaging. Packag Technol Sci. 2017; 30: 781–790. <https://doi.org/10.1002/pts.2333> ## Related Articles [![A modern refrigerator positioned in a kitchen next to cabinetry and a countertop with cutting boards]() ![A modern refrigerator positioned in a kitchen next to cabinetry and a countertop with cutting boards](https://www.marthastewart.com/thmb/Yipj37DARGoT9kT5r6eHHSIWVsw=/282x188/filters:no_upscale\(\):max_bytes\(150000\):strip_icc\(\)/ms-fr-dge-door-11e17191e4084942819926b8f99d020e.jpg) How to Clean the Rubber Seal on Your Refrigerator Door, According to Pros](https://www.marthastewart.com/how-to-clean-refrigerator-gasket-11893034) [![A coffee machine on a kitchen counter with a jar of ground coffee and a spoon nearby]() ![A coffee machine on a kitchen counter with a jar of ground coffee and a spoon nearby](https://www.marthastewart.com/thmb/Lq2d4JmGzEGkqQsICixR8L2qKWY=/282x188/filters:no_upscale\(\):max_bytes\(150000\):strip_icc\(\)/ms-coffee-GettyImages-2185079091-4bae6f120d344afc9510f3558def5ac6.jpg) Can You Clean a Coffee Maker With Baking Soda? 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Readable Markdown	It’s a refrigerator staple, and your grandmother likely swore by it—but does keeping a box of [baking soda in the fridge](https://www.marthastewart.com/cleaning-with-baking-soda-8363193) really [neutralize smells](https://www.marthastewart.com/1146443/diy-natural-air-fresheners)? The old-school trick's singular ingredient and near-effortless method may have you doubting its effectiveness, but we're here to break down the science behind the classic and share the tips to make it work for you. - [Dani Dominguez](https://www.linkedin.com/in/dominguez-danielle/), MS, RDN, registered dietitian nutritionist and founder of [SunBright Wellness](http://www.sunbrightwellness.com/) - Trish Duarte, president and CEO of [MaidPro](https://www.maidpro.com/) of Temecula ## Why Baking Soda Works as a Fridge Deodorizer If you've ever doubted [baking soda’s powers](https://www.marthastewart.com/how-to-use-baking-soda-in-the-garden-11732918), look to the science. One study that evaluated baking soda in food waste containers found that the containers with baking soda had 70 percent lower odor concentration than the controls. “Other research has explored its use in food packaging, including fermented foods like kimchi, and observed measurable reductions in odor intensity when baking soda was incorporated,” explains Dani Dominguez, MS, RDN, a registered dietitian nutritionist. OK, so studies prove that baking soda is an effective deodorizer—but why is that? "Baking soda, also known as sodium bicarbonate, neutralizes odors through acid-base chemistry," says Dominguez. "This crystalline salt is amphoteric, meaning it can react with both acidic and basic compounds." This is where the chemistry comes into play: "Because many unpleasant odors are caused by volatile molecules that are either acidic or basic in nature, baking soda can chemically interact with them to neutralize them," says Dominguez. "In doing so, it can reduce their volatility, making the smell less noticeable." ## The Best Way to Use Baking Soda in Your Fridge That trusty box of baking soda in your fridge is effective—but the placement of the baking soda and the amount relative to the size of your refrigerator’s interior also matter for best results. “We might be tempted to shove an open box to the back of the shelf and call it a day, but for baking soda to really work, it needs airflow,” says cleaning expert Trish Duarte. “A mostly closed box is like a guard stuck in a closet. It can’t see or stop an odor-causing thief.” Duarte recommends pouring a cup of baking soda into a shallow, wide container. If you prefer to keep the powder in the box, open the top fully and give it a gentle shake once a week to bring fresh powder to the surface. “Replace the whole box every thirty days,” she adds. “Baking soda can only handle so much. After a few weeks, it starts to lose its odor-fighting abilities.” For stronger smells, Duarte suggests placing a small bowl of activated charcoal next to the baking soda. “Charcoal is more porous than baking soda and traps odor molecules like a magnet, grabbing what baking soda can’t,” she says. Remember that baking soda isn't a miracle deodorizer for every household surface. “While it’s tempting to sprinkle baking soda everywhere—including carpets, mattresses, and upholstery—it’s actually better to avoid that because it can work its way deep into fibers and become nearly impossible to remove,” Duarte says. “Over time, as you walk or sit, they act like tiny abrasives, causing friction that can wear down the material.” ## Keeping Your Fridge Odor-Free Using fresh baking soda in the fridge is a great way to deodorize, but it won’t deter odors or kill the source, like a sticky spill or old food. “For a [clean and healthy fridge](https://www.marthastewart.com/how-to-clean-refrigerator-7964504), start fresh,” says Duarte. “Start with warm, soapy water to remove spills and residue. Use a [diluted vinegar solution](https://www.marthastewart.com/vinegar-uses-8350561) if you need extra help with buildup. Let it dry completely before placing your baking soda to maintain freshness.” Keeping the fridge odor-free requires regular cleaning, [keeping food in sealed containers,](https://www.marthastewart.com/8382184/food-storage-mistakes) and tossing spoiled ingredients. “Managing moisture levels is also important, as excess humidity can contribute to mold or bacterial growth that produces odors,” Dominguez adds. “Baking soda serves as a supportive tool rather than a substitute for routine maintenance.
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