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9 Safest Non-Toxic Food Storage Containers (2023)

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More than ever, people are waking up to the reality of processed foods and how they impact our health. But an overlooked aspect of healthy living involves what we store our food in.

Plastic containers – even BPA-free plastic – litter the planet (and our bodies) with toxic bisphenols, phthalates, and microplastics.

So, we searched the market for the best non-toxic food storage containers. What makes a container non-toxic? They’re entirely plastic-free (including the lids) for starters.

Instead, the safest food storage containers are made from non-porous, non-reactive, and non-petroleum-based materials. Glass, stainless steel, silicone, and natural waxes fit the bill.

Those are just a few of the stringent criteria and testing we applied to find our top nine plastic-free food storage containers. You’ll see how and why we chose these options below.

Later on, we’ll cover the “safer” plastics for food use (and which to avoid) so you can audit your current Tupperware. And tips to reduce risk with any plastic container.

Let’s get started.

Our Top Picks – Quick Comparison:

BrandsMaterialsDishwasher-safe?Leak-proof?Price Range
Anyday (Top Pick)Borosilicate Glass & LFGB SiliconeYesYes$35+
U-Konserve18/8 Stainless Steel & LFGB SiliconeYesYes$11+
CarawayGlass, Non-Stick Ceramic, & FDA SiliconeNoNo$35+
Zip TopLFGB Platinum SiliconeYesNo$10+
PyrexGlass & FDA SiliconeYesYes$80
Seed & SproutBorosilicate Glass & LFGB SiliconeYesNo$9+
Life Without PlasticBorosilicate Glass, Bamboo, & FDA SiliconeYesYes$10+
Kilner JarsBorosilicate Glass & FDA SiliconeYesYes$7+
Bee's WrapsOrganic Cotton & Bee or Plant WaxNoNo$6+

How We Chose Our Picks: Safety, Testing, Brand & Criteria

  • The container must be 100% plastic-free (this includes BPA-free plastic and plastic lids).
  • Must be inert, non-porous, and non-reactive – no leaching or tainting of food flavors.
  • Must be free from PFAS, lead, cadmium, and other heavy metals – just like our cookware and dinnerware.
  • Must be durable, regardless of material (most of our glass picks are borosilicate instead of soda-lime).
  • The container should be easily recyclable or compostable.
  • The brand should make an effort to better the planet, both through its products and operations.
  • Through our testing, the containers must prove satisfactory in leak resistance, shock resistance, and ease of care.
  • We evaluated through “upside down” tests, heating and cooling, and “old food” testing (leaving meals in containers for two weeks, then cleaning to see how difficult it is).

9 Best & Safest Non-Toxic Food Storage Containers: Reviewed

Now let’s explore the best non-toxic food storage containers. All nine below made it to the finish line after our extensive testing and criteria evaluation detailed above.

#1: Anyday (Top Pick Overall)

  • Materials: Frosted borosilicate glass body and lid with LFGB-certified platinum silicone seal
  • Safety: 100% Plastic-free. PFAS, Bisphenol, Phthalate, Lead, and Cadmium-free
  • Appliances: Freezer, microwave, dishwasher, and *oven-safe (*500℉ bowl, 400℉ lid)
  • US-based, made in China. Ships to US, Canada, and Australia
  • Price range (food storage): $35 – $190
  • 2-year warranty
anyday-glass-food-storage-containers
Anyday

Having tried Anyday’s products, I’m impressed. These containers reheat leftovers impeccably yet also excel in rapid microwave cooking from scratch! To my surprise, I experimented with raw chicken and had a perfectly cooked piece in about eight minutes. I thank their dome-shaped borosilicate bowls and silicone-sealed glass lids. This design works in tandem to promote airtight steam circulation, preserving flavor and preventing dried-out food.

But my favorite part is the lid’s push-button knob, ensuring a 100% leak-proof seal, perfect for on-the-go. My “upside down” test confirmed this. Anyday’s versatility and durability make it my top choice overall. Sure, the stainless options below are more durable, but these are microwave-safe!

Their 2-pack Starter Set with large shallow and deep dishes is ideal for chicken, pasta, and more. Their Everyday and Complete sets offer a more robust food storage arsenal. Anyday’s commitment beyond the kitchen is even more compelling, supporting causes like The Lee Initiative and Baby2Baby.

#2: U-Konserve

  • Materials: 18/8 stainless steel body with clear LFGB-certified platinum silicone lid
  • Safety: 100% Plastic-free. PFAS, Bisphenol, Phthalate, Lead, and Cadmium-free
  • Appliances: Fridge, freezer, dishwasher, and *oven-safe. (*containers only – 300 degrees) Not microwave-safe, but U-Konserve’s Bounce Box is.
  • US-based, made in China. Ships to all US states (free for orders over $49) and select international shipping
  • Price range (food storage): $11 – $100+
  • 1-year warranty
ukonserve-stainless-steel-food-storage
U-Konserve

U-Konserve almost didn’t make my list, as I had another brand I love and have used for several years.

Both offer the same materials and quality, with easily stackable designs and robust, non-toxic 18/8 stainless steel. Each uses LFGB-certified (the safest overall) leak-proof silicone lids. But I’m glad I gave U-Conserve a shot, as three things set them apart.

They’re the only company producing clear-as-glass silicone lids. You don’t lose visibility of your leftovers, which is often the case with silicone. If that’s not for you, their teal and blue lid options make telling lunches apart simple. Second, all U-Konserve containers feature etched tare weights for easy bulk shopping. This includes their 5oz option up to full-sized 50oz in every style, whether their standard, divided, or nesting containers.

Lastly, this brand makes a tangible effort to prioritize bettering the planet as a Certified B-Corp, donating 5% of orders to environmental non-profits.

#3: Caraway

  • Materials: Tempered soda-lime glass body with non-stick ceramic coating. Glass lids with silicone seals.
  • Safety: 100% Plastic-free. PFAS, Bisphenol, Phthalate, Lead, and Cadmium-free
  • Appliances: Freezer, microwave, and *oven-safe up to 450ºF (*excluding lids and Dot/ Dash inserts)
  • Pictured set includes: 1 Large (10-cup), 2 Medium (6.6-cup), 2 Small (4.4-cup), 2 Dots (0.5-cup), 2 Dash (1.1-cup), 2 Travel Straps, & 3 Organizers.
  • US-based, made in China. Ships to all US states, Canada, UK, EU, and Australia.
  • Price range (food storage): $35 – $245
  • 1-year warranty
Caraway-ceramic-food-storage-containers
Caraway

Caraway’s non-toxic storage containers are unique. Their standout feature? Effortless non-stick cleanup without harmful PFAS coatings.

I tested their non-stick claims by leaving food in one for two weeks (I know, gross) – and cleaning took seconds with just a bit of soap. Plus, I love how there’s no risk of harmful chemicals off-gassing or leaching, even if I accidentally scratch or overheat the container (I’m clumsy like that)! The tight-sealed glass lids with Air Release Tech help prolong your food’s freshness.

But the real magic? Adapting them into on-the-go bento boxes is a breeze. The Dot & Dash Inserts and storage straps make it simple. And Caraway doesn’t stop at functionality; their set comes in six vibrant colors, ensuring top-notch aesthetics. And they toss in their innovative storage rack as a bonus! You can buy all the pieces individually if you don’t want a whole set.

Plus, they care for the environment, shipping plastic-free and offsetting their carbon footprint. It’s a win-win.

Note: These are not 100% leak-proof – go with Anyday (#1), U-Konserve (#2), or Pyrex (#5) for 100% leak-proof containers.

Use soft silicone or wood utensils to not damage the non-stick coating. Also, Caraway claims these containers are dishwasher-safe. I recommend hand-washing; dishwashers degrade non-stick performance.

#4: Zip Top

  • Materials: 100% LFGB-certified platinum silicone
  • Safety: 100% Plastic-free. PFAS, Bisphenol, Phthalate, Lead, and Cadmium-free.
  • Appliances: Freezer, microwave, and dishwasher-safe
  • Made in the USA. Ships to all US states and Canada.
  • Price range: $9.99 up to $100
  • 30-day refund window
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Zip Top

Zip Top is a 100% plastic-free Ziploc alternative that doesn’t leach harmful chemicals into your food. Instead, these are made entirely from LFGB-certified silicone.

Unlike others, Zip Top’s one-piece design makes it remarkably durable. It’s not 100% leak-proof, but I prefer that over the plastic sliders most brands use. Thicker liquids don’t leak at least (i.e., gravy), but stuff like tomato soup will.

The upright design is a game-changer, maximizing fridge space and allowing mess-free snacking on the go (my usual choice is trail mix straight from my cup holder en route to hikes!). But what truly won me over?

Zip Top is the only company producing their bags in the US, something I’ve always championed. With six color options, 2-packs up to eight, and unique silicone “Dish” and “Cup” sets, they cater to every need. Plus, their 100% recyclable US-made packaging seals the deal.

#5: Pyrex Ultimate

  • Materials: Tempered soda-lime glass body and lid with airtight, leak-proof silicone rims
  • Safety: 100% Plastic-free. PFAS, Bisphenol, Phthalate, Lead, and Cadmium-free
  • Appliances: Microwave, freezer, dishwasher, and *oven-safe (*including the lids!)
  • Pictured set includes: Five versatile sizes: 16oz, 24oz, 32oz, 48oz, and 56oz.
  • Container made in the USA; Lids made in China. Ships globally.
  • Price: $79.99 for the Ultimate Set (pictured)
  • 2-year warranty
Pyrex-ultimate-non-toxic-food-storage-containers
Pyrex

Unlike most Pyrex options, the Ultimate set is unique as it’s entirely glass, including the lids! Opting for silicone over plastic makes them airtight, leak-proof, and, most importantly, 100% plastic-free. Although not borosilicate glass (Pyrex went to soda-lime years ago), I trust their tempering entirely. I’ve never had a Pyrex container break from thermal shock after years of use among my family.

Along with selling the perfect non-toxic food storage container, it feels good knowing that Pyrex’s parent company, Instant Brands, supports humanitarian causes. They actively work towards sustainability operations, too. It’s a worthwhile choice all around.

#6: Seed & Sprout (Plastic-Free Shop)

  • Pictured Set Materials: Borosilicate glass body and lid with LFGB-certified platinum silicone rims.
  • Safety: 100% Plastic-free. PTFE, PFOA, PFAS, Bisphenol, Phthalate, Lead, and Cadmium-free
  • Appliances: Microwave, freezer, dishwasher, and oven-safe – including the lids (S&S silicone bags are not oven-safe)
  • Pictured set: Round Glass Eco Stow | Praline.
  • Based in Australia. Made in Australia, Taiwan, China, and India. Ships worldwide.
  • Price range: Pictured set is $63. S&S food storage starts at $9.
Seed-and-Sprout-glass-food-storage
Seed & Sprout

Seed & Sprout is a 100% plastic-free shop, offering everything from non-toxic food storage to camping accessories. Their Eco Stow containers are a game-changer.

Unlike my previous choice, Anchor Hocking’s Trueseal, S&S containers are 100% borosilicate glass with silicone rims, eliminating all plastic elements. The added bonus? Each lid features an adjustable air vent: open it for perfect reheating conditions; close it for prolonged food freshness. I didn’t find the lids completely leak-proof, but they’re leak-resistant enough.

Personalization is easy, with various container assortments and silicone rim colors like Oatmilk and Praline. Plus, S&S’s commitment to eco-conscious practices, like an emissions-free headquarters and Silicone Take-Back program, makes them a solid choice.

#7: Life Without Plastic (Plastic-Free Shop)

  • Materials: Borosilicate glass with bamboo lid and FDA-certified silicone seal. Stainless steel options are 18/8 stainless with silicone seal.
  • Safety: 100% Plastic-free. PFAS, Bisphenol, Phthalate, Lead, and Cadmium-free
  • Appliances: Freezer, microwave, *dishwasher, and *oven-safe (*container only – not bamboo lid). Stainless: Freezer, dishwasher, and oven-safe (without silicone seal).
  • Canada-based, made in India and China. Ships globally.
  • Price range (food storage): $10 up to $123
  • 1-year warranty
life-without-plastic-divided-glass-container
Life Without Plastic

Life Without Plastic stands out as another plastic-free haven. Their divided, non-toxic glass container (the only here) is a meal-prepping gem made from rugged borosilicate for versatile heating.

I specifically chose bamboo lids here over wood, as bamboo is more water-resistant and, thus, more hygienic and less likely to warp. The lid’s silicone seal and security bands create a watertight combo for mess-free transport.

However, it’s still glass. Their leak-proof 54oz all-stainless container is excellent for a more rugged travel pick. Grab the steel divider version for organized meal prep. LWP doesn’t stop there, offering a 40oz glass option, organic cotton produce bags, and a variety of round 18/8 containers.

Plus, their Green America-certified ethos extends to plastic-free packaging and ethical sourcing. A top-notch choice overall.

#8: Kilner Jars

  • Materials: 100% Borosilicate glass with silicone seal
  • Safety: 100% Plastic-free. PFAS, Bisphenol, Phthalate, Lead, and Cadmium-free
  • Appliances: Freezer, oven, dishwasher, and microwave-safe
  • UK-based, made in China. Ships to US and UK
  • Price range (food jars): $30 to $65
  • 14-day refund window
kilner-food-storage-jars
Kilner

Kilner, established in 1842 England, champions food preservation and sustainability. They’ve stayed on top ever since for three reasons: rugged 100% borosilicate glass, their patented vacuum seal system, and the iconic Kilner design. These jars are my go-to for food preservation and dry goods storage (I use them for mixed nuts).

The borosilicate glass is exceptionally durable, outlasting traditional soda-lime — especially if these get exposed to quick temperature changes often. Kilner’s distinctive pressure system remains unrivaled in keeping stuff fresh, earning its permanent spot in my kitchen.

They offer a diverse range, including clip-top oil bottles, vintage canning jars, and 2.4oz spice jars. Kilner’s 68oz (2-liter) clip-top jars are perfect for larger storage needs, such as bulky vegetables, cereal, pasta and beyond.

#9: Bee’s Wraps

  • Beeswax Wraps: Organic cotton, beeswax, organic plant oil, and tree resin
  • Vegan Wraps: Organic cotton, candelilla wax (instead of beeswax), soy wax, organic coconut oil, and tree resin
  • Safety: 100% Plastic-free. PFAS, Bisphenol, Phthalate, Lead, and Cadmium-free
  • Appliances: Fridge and *freezer-safe (*completely wrap the food to prevent freezer burn)
  • Made in the USA. Ships globally.
  • Price range: $5.99 up to $99
  • 30-day warranty
Bee's Wraps

Bee’s Wraps are a must-have for non-toxic food storage. These responsibly sourced, US-made beeswax wraps offer a 100% plastic-free alternative to Saran wrap.

With just the warmth of your hands, they form a breathable seal around your food, preserving it longer than plastic. And they’re reusable for up to 12 months, claiming to save 1,667 sq. feet of plastic yearly per pack. Unlike plastic wrap, Bee’s Wraps compost naturally into the earth. Or, if you’re a camper like me, they double as excellent fire starters!

I recommend the assorted 3-pack to start (large, medium, and small – one each), then stock up on your favorite size. Or, explore their bread wraps, DIY roll wraps, and wax food storage bags – great for heads of lettuce. Lastly, Bee’s Wraps’ efforts extend beyond food storage. As a certified B-Corp and 1% for the Planet member, they actively contribute to planet de-pollution.

Hand-wash in cool water; air dry. Avoid hot water, storing near sunny windows, and leaving in hot cars, as these will ruin the wax.

Four Safest Food Storage Container Materials: Explained

Safest-Food-Storage-Container-Material-graphic

And what to know about each:

  • Glass food storage containers shine for their inert, non-porous surfaces. You can store the most acidic sauces in glass without staining or flavor-leaching. And it cleans up super easily. Note: Opt for borosilicate glass. Its higher thermal shock resistance allows for oven reheating and even baking with lower risk of breakage. Assume a glass container is soda-lime unless “borosilicate” is clearly stated.
  • Stainless steel’s versatile, non-reactive surface handles acidic and high-fat foods without chemical leaching. It’s ideal for hot/ cold storage and oven reheating without risking thermal shock breakage like glass. Note: Make sure to get 18/8 (304-grade) stainless steel food storage containers, as cheaper 201-grade will corrode.
  • Quality food-grade silicone comes either FDA or LFGB-certified, the latter being the safest option. Silicone is lightweight, flexible, and shatterproof, yet entirely inert even in high microwave temperatures. It’s soft and durable, ensuring no damage (to anything) if dropped. Note: Silicone food storage items might develop a film with oily foods; if cleaning with soap doesn’t remove it, boiling the silicone for 15 minutes should.
  • Wax Food Wraps (Beeswax & Vegan) often consist of infused cotton cloth (ideally organic cotton), using beeswax, tree resin, coconut, and jojoba oils. Use the heat from your hands to activate the wax, causing it to become tacky. Then, wrap your food as you would plastic wrap or aluminum foil. It adheres to itself and the edges of containers. Plant-based wraps are the way to go for those wanting a more vegan-friendly option – substituting beeswax with plant waxes.

Why You Should Avoid Plastic Food Containers: Health & Environmental Risks

Plastic containers, especially when old or exposed to high temperatures, can leach harmful chemicals like BPA and phthalates into food. An example of a “leaching situation” would be storing leftovers (especially acidic foods) in an old plastic container and reheating them in the microwave.

You’ll find BPA in polycarbonates, a clear, hard plastic often used for reusable water bottles. Phthalates, mostly found in PVC, make plastics softer and more flexible. You can assume flexible plastics (i.e., plastic wraps) contain some phthalate content unless otherwise stated – NIEHS.

Here’s the problem with these chemicals. Studies show Bisphenols to be endocrine-disrupting compounds. Ingestion can cause developmental issues (especially in children) such as ADHD, heart problems, and obesity. BPA-free Tupperware also carries risk; it simply contains BPS or BPF instead of BPA. And studies show these “alternative Bisphenols” nearly mirror BPA’s health risks.

The environment isn’t unscathed, either. When someone disposes of plastic food containers, they linger for hundreds of years. Marine life often mistakes this plastic for food (and we know where that leads). Plastic also leaches chemicals and microplastics that contribute to soil and water pollution – UNEP.

So, it’s wise to choose phthalate and Bisphenol-free alternatives whenever possible, as it can reduce toxin exposure and promote a safer environment for everyone. Note: This includes glass containers with plastic lids, as food contact with the cover can present the same risks.

Opting for glass, stainless steel, silicone, and wax food storage is far safer. Not only are they better for your health, but these materials are easier to recycle and more eco-friendly. Plus, they won’t hold onto food odors or stains like plastic does (I’m talking to you, red sauce stain!).

Safer Plastics for Food Storage Containers (& Which to Definitely Avoid)

While I hesitate to say non-toxic plastic food storage containers exist, some plastics are safer than others.

Let’s quickly go over the safest (and most unsafe) plastics for food storage. Each has its resin code (recycling #) listed for easy identification at home.

Generally, safer plastics for food storage include:

  • PP: #5, Polypropylene. A tough, rigid, heat-resistant plastic with a cloudy appearance. It’s often used in food storage containers, baby bottles, and cleaning products. PP is ideal for food use as it’s nonvolatile, so it won’t react with foods stored inside, even when heated.
  • Virgin (non-recycled) LDPE: #4, Low-density polyethylene. This translucent plastic is very much like HDPE, yet more flexible. You’ll find it in PVC-free cling wraps, produce/ frozen food packaging, 6-pack rings, and squeeze bottles (i.e., mustard). It’s chemically resistant and non-leaching at various temperatures; however, it shouldn’t be used for food storage when recycled, as it loses its safety.
  • Virgin (non-recycled) HDPE: #2, High-density polyethylene. Most commonly found in milk or juice bottles, yogurt cups, cereal box liners, and laundry detergent bottles. This translucent, milky-white plastic repels moisture, resists corrosion, and doesn’t leach when heated. However, HDPE can also become unsafe once recycled or reused.
  • PET: #1, Polyethylene terephthalate. A semi-rigid, clear plastic often used in peanut butter or salad dressing containers and 2-liter soda bottles. PET contains no BPA, phthalates, dioxins, or heavy metals; it’s non-corrosive and repels microorganisms, making it a safer plastic for food use.
  • Pro tip: Generally, soft, flexible, and cloudy plastic containers are less likely to contain BPA.

On the contrary, the least safe plastic containers include:

  • PC: #7, Polycarbonates. A clear, hard plastic often used for food storage containers and kitchen appliances. PC usually contains BPA and can degrade and release small amounts of bisphenols through washing and heating food (especially acidic and alkaline foods). – NIH
  • PVC: #3, Polyvinyl chloride. Soft and flexible plastic often found in shower curtains and other pliable items. PVC contains additives like phthalates that can leach into food when heated or exposed to fatty or acidic foods.
  • PS: #6, polystyrene. Hard, brittle plastic manufactured using the neurotoxin styrene. It’s often used for disposable tableware, takeout containers, and non-see-through disposable cutlery. Now, PS is safe for food in a solid, unheated state. But, when heated (i.e., microwaves), PS leaches these neurotoxic chemicals, making it unsuitable for regular food storage.

Regardless of which plastic you use, it’s vital to use it safely, as any plastic can present risk—

Reducing Risk with Any Plastic

Even if plastic is labeled “microwave-safe,” “BPA-free,” and “phthalate-free,” it can break down over time. When that happens, even Bisphenol-free plastic can leach trace amounts of production additives into food.

These leachable chemicals include degradation phenols and flame retardants such as triphenyl phosphate (TPP). Like bisphenols, they cause estrogenic activity in the body – EHJournal.

Plastic that is old/ worn-out (through frequent uses, wash cycles), heated, or exposed to UV light increases the likelihood of leaching. Acidic foods are another stressor.

So, follow these guidelines to ensure safer usage with any plastic container:

  • Do not microwave or otherwise heat food in any plastic container.
  • Do not serve hot meals in plastic food containers. Heat in a separate dish.
  • Do not save or reuse commercial plastic food packaging. Single-use takeout containers, for example.
  • Try to avoid putting plastic containers in the dishwasher.
  • Get rid of old, worn-out containers.

Recap & Conclusion

To wrap up, let’s quickly recap the main takeaways here:

  • The best non-toxic food storage containers are made from glass, stainless steel, silicone, and wax. We can throw ceramic in the mix here as well. Just ensure it’s lead and cadmium-free.
  • Make sure to use 18/8 stainless steel.
  • Only use FDA or *LFGB-certified silicone (*the better option).
  • If you do use plastic containers, opt for PP, LDPE, HDPE, or PET. They are safer for food storage.
  • With any plastic, avoid microwaving it or otherwise heating food in the plastic. Do not reuse takeout containers, and dispose of old, worn-out Tupperware.

Now that you’ve got the gist of the safest food storage containers, it’s time to evaluate your cookware for PFAS and heavy metals. Check out our safe cookware guide!

Adam Heck
Adam Heck

Hey, I'm Adam - TGL author and founder. Since 2016, I've produced and sold non-toxic kitchenware throughout the US. Today, I'm using my background in sustainable product manufacturing to help families avoid unsafe reusable foodware. When I'm not writing, you'll find me throughout Appalachia camping, hiking, or both!