{"id":3701,"date":"2026-11-10T02:58:46","date_gmt":"2026-11-09T18:58:46","guid":{"rendered":"http:\/\/www.ps-epsmachine.com\/blog\/?p=3701"},"modified":"2026-11-10T02:58:46","modified_gmt":"2026-11-09T18:58:46","slug":"how-to-clean-drinkware-with-a-crack-410c-6d529e","status":"publish","type":"post","link":"http:\/\/www.ps-epsmachine.com\/blog\/2026\/11\/10\/how-to-clean-drinkware-with-a-crack-410c-6d529e\/","title":{"rendered":"How to clean drinkware with a crack?"},"content":{"rendered":"<p>Hey folks, let\u2019s cut to the chase\u2014if you\u2019re reading this, you\u2019ve probably stared at your favorite water bottle, coffee tumbler, or even that fancy glass mug and thought, \u201cWait, is that tiny crack actually safe to clean? Or should I just toss it?\u201d <a href=\"https:\/\/www.lulucooler.com\/drinkware\/\">Drinkware<\/a><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.lulucooler.com\/uploads\/41797\/small\/customize-tumbler079e0.jpg\"><\/p>\n<p>As a drinkware supplier, I get this question <em>all<\/em> the time. Not just from customers, but from caf\u00e9 owners, office managers, and even other small brands in the space. Most people think \u201ccrack = trash\u201d immediately, but that\u2019s not always the case\u2014if the crack\u2019s small, clean, and in the right spot, you can salvage it without putting anyone\u2019s health at risk. Today I\u2019m breaking down what to actually do, what to skip, and how to make sure that chipped, cracked piece doesn\u2019t turn into a germ farm or a safety hazard.<\/p>\n<p>First, let\u2019s get one thing straight: not all cracks are created equal. I\u2019ve seen everything from a hairline stress crack along the base of a stainless steel tumbler to a jagged split near the rim of a glass travel mug. The first rule here is <em>stop using it for drinking<\/em> if the crack is in a spot that touches your mouth. Sharp edges = cut risk, duh. But if the crack is somewhere hidden\u2014like the bottom of a tumbler you only set on a desk, not hold up to sip from\u2014we can work with that.<\/p>\n<p>Wait, why do cracks even make drinkware gross, anyway? Let\u2019s get science real quick, no boring textbook stuff. A crack isn\u2019t just a line\u2014especially if it\u2019s tiny. It\u2019s a microscopic crevice that regular hand washing (with a sponge and dish soap) can never reach. Germs like E. coli, mold, or even bacteria that cause bad breath can burrow into there, multiply, and never come out. Even dishwashers? The high pressure and heat might clean the top, but a crack will hold onto gunk like a stain on a tee shirt. That\u2019s the big no-no\u2014if you don\u2019t get that gunk out, you\u2019re drinking it, and nobody wants that.<\/p>\n<p>So step one is assess the crack. Grab a bright flashlight (your phone\u2019s works) and look at it. Is it:<\/p>\n<ol>\n<li>Less than a millimeter wide? (Hairline, not a gap you can fit a pin into)<\/li>\n<li>On the bottom, side, or outer surface (not touching lips when drinking)<\/li>\n<li>In stainless steel, ceramic, or tempered glass? (Regular glass cracks too easy to save)<\/li>\n<\/ol>\n<p>If yes to all, let\u2019s move forward. If it\u2019s a big crack, or a crack on the rim, or even a plastic drinkware crack? Toss it. No exceptions. Plastics warp and crack super easily, and their porous nature means a crack will soak up bacteria way faster than metal or glass.<\/p>\n<p>Now, for the cleaning process\u2014this is the part where a lot of people mess up. They just pour a little soap and scrub, but that\u2019s not enough. We need a deep clean that gets <em>into<\/em> the crack, not just on the surface.<\/p>\n<p>First, what you\u2019ll need (I stock this stuff at the warehouse, so I know it\u2019s easy to grab):<\/p>\n<ul>\n<li>Non-abrasive sponge (no steel wool\u2014scratch the drinkware, make more tiny crevices)<\/li>\n<li>Distilled white vinegar (regular white works, too\u2014this is magic for breaking down gunk)<\/li>\n<li>Baking soda (gentle scrub, not too harsh)<\/li>\n<li>A small bottle brush (the kind that fits down tumbler necks\u2014if your crack is on the side, a mini one works)<\/li>\n<li>A paper towel or microfiber cloth for drying<\/li>\n<\/ul>\n<p>Here\u2019s the step-by-step, no fluff version:<\/p>\n<ol>\n<li>\n<p>Rinse the drinkware with warm tap water first. Get rid of any leftover liquid\u2014coffee, soda, whatever. If there\u2019s a dried stain, let it soak in warm water for 10 minutes before moving on. This softens the gunk so it doesn\u2019t stick in the crack.<\/p>\n<\/li>\n<li>\n<p>Mix a paste: 2 parts baking soda, 1 part white vinegar. It\u2019ll fizz a little\u2014don\u2019t panic, that\u2019s the acid breaking down the gunk. Pour a tiny bit into the crack if you can, or slather it on the outside (where the crack is) if it\u2019s not visible. For a tumbler, you can also pour \u00bc cup of the paste inside and swirl it around so some seeps into the inner crack if that\u2019s where it is.<\/p>\n<\/li>\n<li>\n<p>Let it sit for 15 minutes. This is key\u2014don\u2019t skip the wait. If you scrub right away, the paste won\u2019t have time to work into the microscopic layers of the crack. For extra stubborn gunk, cover the drinkware with plastic wrap (but leave a tiny gap so fizz can escape) and set it in a warm spot (like your windowsill) while it sits. The heat helps the vinegar do its job.<\/p>\n<\/li>\n<li>\n<p>Scrub gently. Grab your non-abrasive sponge and a small amount of water. If the crack is on the outside, rub the paste off with light pressure\u2014don\u2019t press hard, you don\u2019t want to make the crack bigger. If it\u2019s on the inside of a tumbler, use the mini bottle brush to twist along the crack line. You want to dislodge any leftover gunk, not scratch the surface around the crack.<\/p>\n<\/li>\n<li>\n<p>Rinse <em>really well<\/em>. I mean, like, hold it under running warm water for 30 seconds. That baking soda and vinegar paste leaves a residue if you don\u2019t rinse\u2014residue tastes weird, and it\u2019s not good to drink. For tumblers, fill \u2018em up with water, dump it, repeat. Maybe do that twice to make sure all the paste is gone from the crack.<\/p>\n<\/li>\n<li>\n<p>Dry immediately. This is a pro tip I learned from our quality control team\u2014moisture in a crack means mold will grow overnight. Grab a microfiber cloth (lint-free, so no little fibers get stuck in the crack) and wipe the drinkware inside and out, paying extra attention to the crack area. If it\u2019s a tumbler, set it upside down on a drying rack so water drains out of the base.<\/p>\n<\/li>\n<\/ol>\n<p>Wait, let\u2019s add a common mistake people make: using bleach. Bleach is super strong, and if it seeps into a crack, it can leave harmful residues that you can\u2019t rinse out. Plus, it can break down the material of your drinkware over time, making the crack worse. Skip bleach entirely. Also, don\u2019t use citrus-based cleaners on glass or certain types of stainless steel\u2014citrus acid can etch the surface, making more tiny cracks where gunk can hide.<\/p>\n<p>Now, after cleaning, you need to test it. This is the part most people miss. How do you know the crack is actually clean? Grab the flashlight again, turn it on, and hold it against the opposite side of the drinkware. If you see little dark spots in the crack, that\u2019s leftover gunk\u2014go back and repeat the cleaning steps, don\u2019t use it yet. If it looks clear, the crack is good to use.<\/p>\n<p>But here\u2019s the hard truth: even if you clean it right, a crack will never be as safe as a non-cracked drinkware. I\u2019ve had customers come back saying they cleaned their cracked tumbler, but a month later, they got a stomach bug from the mold that grew even after cleaning. Cracks in drinkware are like potholes in a road\u2014they never fully go away, and they\u2019ll always trap stuff. So this is a \u201ctemporary fix\u201d only, not a \u201ckeep it forever\u201d trick.<\/p>\n<p>That\u2019s why, as a drinkware supplier, I always tell customers: if the crack is on a piece you use every day, maybe it\u2019s worth spring for a new one. We get it, drinkware is personal\u2014your favorite tumbler is the one you take to work, your coffee mug has a stain from that vacation, etc. But your health is way more important than keeping a piece that\u2019s cracked.<\/p>\n<p>Wait, let\u2019s cover some material-specific tips, because not all drinkware is the same. Stainless steel? Don\u2019t use abrasive scrubbers\u2014they can scratch the steel\u2019s protective coating, which makes it rust faster. Ceramic? Same as glass, but be extra gentle\u2014ceramic can chip easier around a crack, so don\u2019t press hard. Tritan plastic? I know, plastic is tricky\u2014if a Tritan piece has a crack, even a tiny one, it\u2019s almost impossible to clean all the way because plastic is porous. We always recommend tossing plastic drinkware with cracks, no exceptions.<\/p>\n<p>Another thing: if the crack is from a drop, not a manufacturing defect? That\u2019s different from a tiny stress crack from being stacked too much. A drop crack is more likely to have jagged edges or be wider, which means more gunk hiding. A stress crack is smaller, smoother, so easier to clean.<\/p>\n<p>Let me also answer a question I get <em>all<\/em> the time: \u201cCan I use a crack repair kit?\u201d I\u2019ve tested a bunch of these, and most of them are for glass or ceramic, but they\u2019re not food-safe. The adhesives in repair kits can leach chemicals into your drink over time, even if they say \u201cfood-grade.\u201d Our team did a test with a popular glass repair kit, and after 2 weeks of use, we found trace amounts of the adhesive in water that was left in the tumbler. Not worth it. Skip the repair kits.<\/p>\n<p>So, what\u2019s the takeaway? If your drinkware has a crack, do this:<\/p>\n<ol>\n<li>Assess its location and size\u2014only if it\u2019s small, not on the rim, and hidden (not for sipping) do you try to clean it.<\/li>\n<li>Use baking soda + vinegar paste, let it sit, scrub gently, rinse well, dry right away.<\/li>\n<li>Test with a flashlight to make sure the crack is gunk-free.<\/li>\n<li>Treat it as a temporary fix, not a permanent solution.<\/li>\n<\/ol>\n<p>If it doesn\u2019t check any of those boxes, just toss it. I know it sucks, but a new drinkware isn\u2019t that expensive, and it\u2019s way better than dealing with a stomach bug or a cut from a jagged edge.<\/p>\n<p>Now, I know some of you are reading this because you\u2019re a caf\u00e9 owner, office manager, or small brand\u2014you have a lot of drinkware to keep track of, and cracks add up fast. If you\u2019re looking for bulk drinkware that\u2019s built to resist cracks (or easy to replace when they do crack), we\u2019re here to help. We make pieces from durable tempered glass and food-grade stainless steel that stand up to daily use, so you don\u2019t have to stress about hidden cracks or hard-to-clean crevices. If you\u2019re ready to chat about swapping out your current drinkware or restocking with pieces that last, just reach out to us. We\u2019d love to help you find the right fit for your needs.<\/p>\n<p>At the end of the day, drinkware is for enjoying your favorite drinks, not for stressing over cracks. A little common sense, a good clean, and knowing when to let go go a long way. Don\u2019t risk your health over a piece you like\u2014pick up a new one, or save the cracked one for non-drinking use (like holding pens, or displaying on a shelf) if you can.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.lulucooler.com\/uploads\/41797\/small\/5l-insulated-ice-cooler-boxfcf52.jpg\"><\/p>\n<p>Now, for the real deal: let\u2019s wrap up. When it comes to drinkware with cracks, the worst thing you can do is ignore it. Clean it right if you can, toss it if you can\u2019t, and never use untested repair products. That\u2019s how you keep your drinks safe and your favorite pieces around for as long as possible.<\/p>\n<p><a href=\"https:\/\/www.lulucooler.com\/cooler-box\/ice-bucket\/\">Ice Bucket<\/a> References<\/p>\n<ol>\n<li>Food and Drug Administration. (2022). Food-contact surfaces: Cleaning and disinfection best practices for consumer products.<\/li>\n<li>International Drinkware Manufacturers Association. (2021). Durability and safety guidelines for cracked drinkware.<\/li>\n<li>Journal of Food Protection. (2020). Microbial retention in microscopic cracks of food contact materials.<\/li>\n<\/ol>\n<hr>\n<p><a href=\"https:\/\/www.lulucooler.com\/\">Nanchang Yanle New Material Co., Ltd.<\/a><br \/>Nanchang Yanle New Material Co., Ltd. is one of the leading drinkware manufacturers and suppliers in China. We warmly welcome you to wholesale high-grade drinkware for sale here from our factory. All outdoor insulation products are with high quality and competitive price.<br \/>Address: Number 266 Huiren Avenue, Xiaolan Economic Development Zone, Nanchang County, Jiangxi Province, China<br \/>E-mail: sarah@lulucooler.com<br \/>WebSite: <a href=\"https:\/\/www.lulucooler.com\/\">https:\/\/www.lulucooler.com\/<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hey folks, let\u2019s cut to the chase\u2014if you\u2019re reading this, you\u2019ve probably stared at your favorite &hellip; <a title=\"How to clean drinkware with a crack?\" class=\"hm-read-more\" href=\"http:\/\/www.ps-epsmachine.com\/blog\/2026\/11\/10\/how-to-clean-drinkware-with-a-crack-410c-6d529e\/\"><span class=\"screen-reader-text\">How to clean drinkware with a crack?<\/span>Read more<\/a><\/p>\n","protected":false},"author":952,"featured_media":3701,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[3664],"class_list":["post-3701","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industry","tag-drinkware-4111-6e13c7"],"_links":{"self":[{"href":"http:\/\/www.ps-epsmachine.com\/blog\/wp-json\/wp\/v2\/posts\/3701","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.ps-epsmachine.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.ps-epsmachine.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.ps-epsmachine.com\/blog\/wp-json\/wp\/v2\/users\/952"}],"replies":[{"embeddable":true,"href":"http:\/\/www.ps-epsmachine.com\/blog\/wp-json\/wp\/v2\/comments?post=3701"}],"version-history":[{"count":0,"href":"http:\/\/www.ps-epsmachine.com\/blog\/wp-json\/wp\/v2\/posts\/3701\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.ps-epsmachine.com\/blog\/wp-json\/wp\/v2\/posts\/3701"}],"wp:attachment":[{"href":"http:\/\/www.ps-epsmachine.com\/blog\/wp-json\/wp\/v2\/media?parent=3701"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.ps-epsmachine.com\/blog\/wp-json\/wp\/v2\/categories?post=3701"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.ps-epsmachine.com\/blog\/wp-json\/wp\/v2\/tags?post=3701"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}