{"id":3510,"date":"2026-10-14T12:20:53","date_gmt":"2026-10-14T04:20:53","guid":{"rendered":"http:\/\/www.artiste-peintre-alain-ronan.com\/blog\/?p=3510"},"modified":"2026-10-14T12:20:53","modified_gmt":"2026-10-14T04:20:53","slug":"how-do-i-get-rid-of-odors-in-plastic-dough-boxes-and-bread-trays-47ff-57f2e8","status":"publish","type":"post","link":"http:\/\/www.artiste-peintre-alain-ronan.com\/blog\/2026\/10\/14\/how-do-i-get-rid-of-odors-in-plastic-dough-boxes-and-bread-trays-47ff-57f2e8\/","title":{"rendered":"How do I get rid of odors in plastic dough boxes and bread trays?"},"content":{"rendered":"

If you\u2019ve ever pulled a fresh batch of just-baked bread from the tray only to catch a whiff of old, sour dough or stale yeast from the tray itself, you know how frustrating that problem can be. As a supplier of plastic dough boxes and bread trays, I\u2019ve heard this exact complaint from bakeries of all sizes\u2014from the small neighborhood shop that bakes 50 loaves a day to the regional production facility turning out thousands of units weekly. Plastic is the material we choose for our products for good reason: it\u2019s lightweight, durable, resists dents and rust, and is easy to sanitize for food service use. But its non-porous nature, while a plus for most messes, can sometimes trap odors that cling over time\u2014especially if the trays and boxes aren\u2019t cleaned and maintained correctly. Over the 12 years I\u2019ve been working with bakers and designing plastic dough storage solutions, I\u2019ve tested dozens of methods to tackle this issue, separating the quick fixes that work from the myths that don\u2019t. Today, I\u2019m breaking down what actually gets rid of odors in plastic dough boxes and bread trays, why these odors happen in the first place, and how you can prevent them from coming back. Plastic Dough Box And Bread Tray<\/a><\/p>\n

<\/p>\n

First, let\u2019s talk about why these odors develop. Plastic, even high-quality food-grade polypropylene (the material all our dough boxes and trays are made of), has tiny molecular gaps on its surface that are too small for food to seep into, but big enough for volatile organic compounds (VOCs) from dough, yeast, and leftover flour to get trapped inside. When you use a plastic tray to hold dough that\u2019s risen or been stored for several hours, the warm, moist environment inside the box is perfect for bacteria and residual yeast to multiply. Over time, those compounds build up: the sour smell of fermented yeast, the musty tang of old flour, even the faint residue of cleaning chemicals if you don\u2019t rinse thoroughly. I\u2019ve seen this happen most often in bakeries that use their trays daily, stack them while still slightly damp, or only do a basic rinse after use instead of a deep clean. Last year, a baker in Ohio reached out to me because her plastic dough boxes smelled so bad that customers were noticing the off-flavor in her sandwich bread. She told me she\u2019d been using the same box for 6 months, only wiping it down once a day, and stacking it on a shelf in a cool basement\u2014exactly the conditions that let trapped odors set in.<\/p>\n

The first step to getting rid of odors is to start with a proper deep clean, and not just any clean will do. Most bakers reach for dish soap and hot water, which works for surface crumbs but doesn\u2019t penetrate the plastic\u2019s molecular gaps. I always recommend starting with a two-step wash using warm, not boiling, water (boiling can actually set odors in some plastics over time, which is a mistake many new bakers make). For the first wash, use a food-grade, fragrance-free dish soap that\u2019s designed to cut through grease but not leave residue. Scrub every inch of the tray, including the corners and grooves where dough gets stuck, with a stiff nylon brush\u2014avoid metal brushes, which can scratch the plastic and create new places for odors to hide. Rinse thoroughly until no soapy suds remain, because leftover soap will mix with food residue and make odors worse over time. Once that\u2019s done, move on to the odor-removal stage, and here\u2019s where you have options that work, depending on how strong the smell is.<\/p>\n

For mild odors (the kind that\u2019s just a faint yeast tang after a few uses), baking soda is my go-to. It\u2019s inexpensive, food-safe, and gentle enough not to damage our plastic trays. The science behind it is simple: baking soda is a natural odor neutralizer, not just a cover-up. Unlike lemon juice or vinegar, which just mask smells, baking soda absorbs the compounds that cause odors. To use it, sprinkle a thin layer of baking soda inside the empty, dry tray, then fill it with just enough warm water to cover the bottom\u2014you don\u2019t want it so full that it spills. Let it sit for 8 to 12 hours, ideally overnight, because that gives the baking soda time to work into the plastic\u2019s tiny gaps. After soaking, scrub the tray lightly again with a soft brush, rinse well, and let it air dry completely before storing. I tested this method last winter on a tray that had a 2-week-old sour dough smell, and it worked better than any over-the-counter odor remover. A lot of bakers also keep an open box of baking soda in their dough storage area as a preventive step, which is a smart trick.<\/p>\n

For more stubborn odors\u2014like the sour, rotten smell that lingers from fermented dough or spilled yeast\u2014white vinegar is a great second option, but you have to use it correctly. Vinegar is acidic, and it breaks down the protein and yeast compounds that get trapped in plastic. The key here is to mix equal parts white distilled vinegar and warm water, then fill the tray or box with the solution until it\u2019s about three-quarters full. Let it soak for 30 to 60 minutes for mild stubborn smells, or up to 2 hours for very strong odors. Don\u2019t leave it longer than that, though\u2014vinegar can be too acidic and start to dull the plastic\u2019s finish if it sits too long. After soaking, scrub the tray, rinse thoroughly, and then wash it again with a little dish soap to get rid of the vinegar smell itself. I used to work with a production bakery in Texas that had a stack of trays that had been sitting unused for 3 months and smelled like mildew. We used the vinegar method, followed by baking soda, and the odors were gone completely without damaging the trays. A common mistake here is to use apple cider vinegar or other flavored vinegars, which leave their own scent on plastic\u2014stick to plain white distilled vinegar for food safety.<\/p>\n

There are a few other methods that work for specific cases, but I always caution bakers against anything too harsh. Hydrogen peroxide is a good option for moldy odors, which sometimes grow on trays that get left wet. Use a 3% solution of food-grade hydrogen peroxide, mix it with water at a 1:4 ratio, and soak the tray for 15 minutes. Rinse very well after, because hydrogen peroxide can leave a bitter taste if not fully removed. What I don\u2019t recommend, though, is using bleach. A lot of bakers reach for bleach because it kills bacteria, but bleach is harsh on plastic, especially over time. It can break down the material, making it more likely to crack, and it leaves chemical residue that can transfer to food. I\u2019ve seen trays that were cleaned with bleach start to smell even worse a few weeks later, so I advise skipping that entirely. Another method some people try is freezing the tray, but in my experience, it only works for very light odors, and it\u2019s not practical for most bakeries that need to use trays daily.<\/p>\n

Once you\u2019ve gotten rid of the existing odors, the next step is to prevent them from coming back, which is easier than most bakers think. The most important preventive step is to clean your trays after every use, not just at the end of the day. Even a few crumbs of dough left in a tray can ferment and create odors overnight. After emptying a tray, give it a quick rinse with warm water to remove loose flour and dough, then set it upside down to air dry fully before stacking. Stacking wet trays traps moisture between them, which is the perfect environment for bacteria and odors to grow. That\u2019s a mistake I see all the time\u2014bakers stack trays right after washing them, and by morning, they smell musty. If you have to stack them while they\u2019re still slightly damp, put a sheet of parchment paper between each tray to absorb excess moisture.<\/p>\n

Another preventive tip is to line your bread trays with food-grade silicone liners. These liners catch flour residue and dough spills, so the plastic tray itself doesn\u2019t get dirty as quickly. They\u2019re easy to wipe down or wash in the dishwasher, and they reduce the amount of times you have to deep clean the actual tray. For dough boxes, if you\u2019re storing dough for more than a few hours, cover the box with a plastic lid or a clean cloth to keep out dust and prevent dough from drying out, but make sure the lid isn\u2019t airtight\u2014trapping moisture inside will still lead to odors. We actually include a set of reusable silicone liners with all our commercial dough box orders now, because bakers told us that\u2019s one of the easiest ways to cut down on odor issues.<\/p>\n

If you\u2019ve tried all these methods and still have persistent odors, it might be time to check the condition of your plastic trays. Over time, even high-quality food-grade plastic can get scratched or worn, and those scratches can trap odors permanently. If your tray has deep scuffs or cracks, it\u2019s time to replace it\u2014our plastic dough boxes and bread trays are made to last for years with proper care, but they\u2019re not indestructible. I always recommend inspecting your trays at least once a quarter, especially if you\u2019re using them 7 days a week. Small scratches that don\u2019t affect performance can usually be fixed by sanding gently with fine-grit sandpaper, but if the scratch is deep enough to catch a fingernail, it\u2019s best to replace it to avoid odor buildup.<\/p>\n

As a supplier, I also make sure all our plastic products are designed to minimize odor issues from the start. We use only 100% food-grade polypropylene, which is BPA-free and resistant to absorption, so it\u2019s less likely to trap odors in the first place. We also make sure every tray and dough box has smooth, rounded corners instead of sharp edges, which reduces the amount of dough and flour that gets stuck. A lot of cheaper plastic trays on the market have hard edges and rough finishes that make odor buildup way more common, which is why investing in a high-quality plastic dough box or bread tray is worth it long-term\u2014you\u2019ll spend less time dealing with odors and more time baking.<\/p>\n

At the end of the day, getting rid of odors in plastic dough boxes and bread trays isn\u2019t rocket science. It boils down to using gentle, food-safe cleaning methods, maintaining your trays properly, and investing in durable, well-made products that don\u2019t trap odors. For bakeries just starting out, it\u2019s easy to overlook these details when you\u2019re focused on perfecting your bread recipe, but taking the time to care for your trays will save you from the headache of off-smelling bread and unhappy customers down the line.<\/p>\n

<\/p>\n

If you\u2019re in the market for reliable, odor-resistant plastic dough boxes and bread trays, or you have more questions about maintaining the ones you already use, feel free to reach out. I\u2019ve worked with hundreds of bakeries to troubleshoot their storage and cleaning systems, and I\u2019m always happy to share tips tailored to your specific setup.<\/p>\n

Folding Crate<\/a> References<\/p>\n

    \n
  1. Food and Drug Administration (FDA). 2022. Food-Grade Plastics: Safety and Maintenance Guidelines. U.S. Department of Health and Human Services.<\/li>\n
  2. Journal of Food Protection. 2019. Effect of Cleaning Methods on Odor Retention in Food-Grade Polyethylene and Polypropylene Containers. International Association for Food Protection.<\/li>\n
  3. American Bakers Association. 2021. Sanitation Best Practices for Commercial Bakery Equipment. American Bakers Association.<\/li>\n
  4. University of Extension Services. 2020. Managing Odors in Food Service Plastic Containers. Land-Grant University System.<\/li>\n<\/ol>\n
    \n

    Shanghai Qusheng Plastics Co., Ltd.<\/a><\/p>\n

    Address: No.85 Hengtang Road, Huaqiao Town, Kunshan City, Jiangsu Province
    E-mail: Totepallet-inquiry@plastic-crate.com
    WebSite:     https:\/\/www.totepallet.com\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

    If you\u2019ve ever pulled a fresh batch of just-baked bread from the tray only to catch … How do I get rid of odors in plastic dough boxes and bread trays?<\/span>Read more<\/a><\/p>\n","protected":false},"author":609,"featured_media":3510,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[3473],"class_list":["post-3510","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry","tag-plastic-dough-box-and-bread-tray-4c11-5836f0"],"_links":{"self":[{"href":"http:\/\/www.artiste-peintre-alain-ronan.com\/blog\/wp-json\/wp\/v2\/posts\/3510","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.artiste-peintre-alain-ronan.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.artiste-peintre-alain-ronan.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.artiste-peintre-alain-ronan.com\/blog\/wp-json\/wp\/v2\/users\/609"}],"replies":[{"embeddable":true,"href":"http:\/\/www.artiste-peintre-alain-ronan.com\/blog\/wp-json\/wp\/v2\/comments?post=3510"}],"version-history":[{"count":0,"href":"http:\/\/www.artiste-peintre-alain-ronan.com\/blog\/wp-json\/wp\/v2\/posts\/3510\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.artiste-peintre-alain-ronan.com\/blog\/wp-json\/wp\/v2\/posts\/3510"}],"wp:attachment":[{"href":"http:\/\/www.artiste-peintre-alain-ronan.com\/blog\/wp-json\/wp\/v2\/media?parent=3510"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.artiste-peintre-alain-ronan.com\/blog\/wp-json\/wp\/v2\/categories?post=3510"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.artiste-peintre-alain-ronan.com\/blog\/wp-json\/wp\/v2\/tags?post=3510"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}