Silicone Lunch Boxes & Food Containers, ranked by PFAS safety
All 7 platinum and food-grade silicone in our lunch boxes & food containers database, graded Bad to Excellent and ranked safest first. 7 earn a buy-worthy grade.
Klean Kanteen
Rise Food Meal Box
Stainless steel container, food-grade silicone lid
Silicone elastomer degradation
Limited concern
Lower concern. Stainless steel and silicone are inherently PFAS-resistant materials.
⚠Risky category by default
Bentgo MicroSteel Lunch Box
Stainless steel with silicone gaskets
Silicone gasket degradation
Limited concern
Bacterial growth in seal crevices
Limited concern
Stainless steel lunch box, lower PFAS concern.
⚠Risky category by default
Sistema
Esquirla Lunch Box Stainless Steel Leakproof Rectangle Portable Food Container Reusable Stackable Meal Prep Container wi
stainless steel and silicone gaskets
Silicone gasket degradation
Limited concern
Stainless steel pitting/corrosion
Limited concern
Lower PFAS concern; bare stainless steel container with no coating.
⚠Risky category by default
Klean Kanteen
Double Wall Vacuum Insulated Stainless Steel Food Canister Container with Leak Proof Lid
Stainless steel body, silicone gasket lid seal
Silicone gasket degradation
Limited concern
Bacterial growth in seal crevices
Limited concern
Lower concern. Food-contact stainless steel has no inherent PFAS need.
⚠Risky category by default
Zojirushi
Classic Bento Lunch Jar
stainless steel, silicone gasket
Silicone gasket degradation
Limited concern
Bacterial or mold growth in gasket groove
Limited concern
Lower concern. Stainless steel bento jar, no known PFAS coatings.
⚠Risky category by default
Zojirushi
Ms. Bento Lunch Jar
Stainless steel food container with silicone seals
Silicone seal degradation over time
Limited concern
Bacterial colonization in gasket grooves
Limited concern
Lower concern. Stainless steel container unlikely to contain PFAS.
⚠Risky category by default
Aladdin
Metal Lunchbox Thermos Aladdin
Stainless steel body, plastic/silicone components
Silicone and plastic seal degradation
Limited concern
Bacterial or mold growth in seals and threads
Limited concern
Off-gassing from adhesives or sealants
Limited concern
Lower concern; metal thermos design avoids typical PFAS sources.
⚠Risky category by default
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