Lunch Boxes & Food Containers, ranked by PFAS safety
34 products graded from Bad to Excellent, safest first. 31 grade Good or better and are worth buying.
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The best non-toxic lunch boxes & food containers, ranked safest first
Buyer’s guide
What to look for in lunch boxes & food containers, and which brands grade best and worst
Bad · Better · Best lunch boxes & food containers
The quickest read, what to skip and the top-graded picks worth buying instead.
Oggi
OGIO 12L Lunch Box Flower Party - Flower Party
Lunch box with unknown waterproof coating; brand provides no PFAS details.
Klean Kanteen
Klean Kanteen Meal 34oz Food Box
Lower concern. Stainless steel food box lacks known PFAS triggers.
Klean Kanteen
Klean Kanteen Lunch Food Box
Lower concern. Stainless steel construction with strong brand commitment to PFAS avoidance.
Worth buying Good or Excellent, safest first
Klean Kanteen
Lunch Food Box
stainless steel with bamboo fiber lid
Bamboo fiber lid degradation or contaminant absorption
Limited concern
Gasket or seal material composition
Limited concern
Formaldehyde / VOCs
Limited concern
Lower concern. Stainless steel construction with strong brand commitment to PFAS avoidance.
✓Verified PFAS-free by a third party
Klean Kanteen
Meal 34oz Food Box
stainless steel container with glass or ceramic lid
Ceramic or glass lid degradation
Limited concern
Gasket or seal leachables
Limited concern
Lower concern. Stainless steel food box lacks known PFAS triggers.
⚠Risky category by default
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
Zojirushi
Ms. Bento Stainless Lunch Jar
Stainless steel body, polypropylene seals/lids
Polypropylene seal degradation under heat
Limited concern
Microplastic generation from seal wear
Limited concern
Lower concern. Stainless steel container with standard plastic closures.
⚠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
Bentgo Stainless Steel Insulated Food Container
stainless steel exterior, insulated core
Silicone gasket and plastic lid degradation
Limited concern
Stainless steel minor ion leaching (nickel, chromium)
Limited concern
Bacterial colonization in insulation gaps or seals
Limited concern
Lower PFAS concern; bare stainless steel food contact surface.
⚠Risky category by default
Zojirushi
SL-XE20AD Classic Stainless Lunch Jar
Stainless steel interior and exterior, no nonstick or waterproof coatings
Nickel leaching from stainless steel
Limited concern
Seal/gasket degradation and mold growth
Limited concern
Lower PFAS concern. Bare stainless steel lunch jar, no coatings.
⚠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
Ello
Cello Stainless Steel Lunch
Stainless steel, bare uncoated
Gasket and seal integrity
Limited concern
Lower PFAS concern. Bare stainless steel lunch container.
⚠Risky category by default
Rubbermaid
24 pc Rubbermaid Easy Find Lid Containers & 8 pc Stainless Container Set
Polypropylene plastic containers and stainless steel
Microplastics
Limited concern
Monomer leaching from polypropylene
Limited concern
Lid gasket degradation and bacterial growth
Limited concern
Lower concern; bare stainless and standard polypropylene unlikely PFAS sources
⚠Risky category by default
Rubbermaid
24 Pc Easy Find Lid Containers & 8 Pc Stainless Container Set - New Home
Polypropylene and stainless steel (bare, uncoated)
Plastic degradation and microplastic shedding
Limited concern
Lid gasket or seal degradation
Limited concern
Lower PFAS concern. Bare stainless steel and polypropylene containers.
⚠Risky category by default
Tupperware
Mainstays Food Container Reusable Insulated Stainless Steel
stainless steel interior, insulated construction
Gasket/seal material degradation
Limited concern
Outer plastic shell leachables (if applicable)
Limited concern
Reusable insulated stainless steel container, lower PFAS concern.
⚠Risky category by default
Emsa
Essaware - Lunch Mate - Stainless Steel - Reusable Sandwich Container - Homeplace Market
Stainless steel, bare uncoated
Nickel leaching
Limited concern
Chromium leaching
Limited concern
Lower PFAS concern. Bare stainless steel container, no coatings detected.
⚠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
Stanley
Classic Legendary Useful Box
Plastic, likely polypropylene or polyethylene
Microplastics
Limited concern
Chemical leaching from mold release or additives
Limited concern
Thermal degradation and off-gassing if heated
Moderate concern
Lower PFAS concern. Food-contact risk minimal with bare plastic.
⚠Risky category by default
Stanley
All Day Midi Lunch Box
Stainless steel exterior, polypropylene interior
Polypropylene degradation under heat
Limited concern
Gasket and seal degradation
Moderate concern
Lower concern lunch box, typical safe materials, no PFAS red flags.
⚠Risky category by default
Stanley
The FlowState Duo Lunchbox 8.2 QT
Stainless steel container with plastic lid
Plastic lid and gasket material composition
Limited concern
Bacterial growth in sealed compartments and gasket grooves
Moderate concern
Microplastics
Limited concern
Lower concern; bare stainless steel with no coating disclosures.
⚠Risky category by default
Sistema
Bento Lunch Box 1,65 L
Polypropylene (PP) plastic container and lid
Microplastics
Limited concern
Bacterial colonization of seams and gaskets
Limited concern
Lower concern; rigid PP lunch box unlikely to contain PFAS.
⚠Risky category by default
Sistema
Lunch Plus Lunch Box
polypropylene (PP) plastic container
Microplastics
Limited concern
Oligomer and stabilizer leaching (additive migration)
Limited concern
Microbial growth if seals degrade
Limited concern
Lower concern; no PFAS risk from plain polypropylene lunch box.
⚠Risky category by default
Aladdin
Lunchbox, Aladdin Metal Latched, Top Compartment Holder, Black Handle, Vintage
Metal (steel/aluminum) with interior enamel or paint coating
Lead
Limited concern
Aluminum leaching from bare metal exposure
Limited concern
Coating degradation and microflaking
High concern
Bacterial growth in latches and crevices
Limited concern
Vintage metal lunchbox, lower PFAS concern.
⚠Risky category by default
Aladdin
Disney Sport Goofy Aladdin Metal Lunch Box with Thermos
stainless steel lunch box, insulated thermos with plastic liner
Thermal shock and plastic liner failure
Limited concern
Microbial growth in thermos seal/closure
Limited concern
Lower concern. Stainless steel and common thermos materials carry minimal PFAS risk.
⚠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
- 70Ello Ello Benni Hot/Cold Food Storage Container with Charms
- 70Stanley Stanley Classic Lunch Box
- 70Aladdin Vintage 1983 Aladdin Metal Lunch Box Rose Petal Place No Thermos
- 70Ello Lalo Bento Box
- 70Emsa Emsa Clip & Go XL Lunch container Green,transparent 2.3 L 1 pc
- 70Emsa Emsa n1150500 Hermetic Jar
- 70Emsa Emsa Clip&go Lunchbox 518098
Graded and flagged Poor and Bad, we’d swap these
Oggi
OGIO 96000 Sprint Lunch Cooler
polyester with waterproof coating, unclear polymer type
PFAS
High concern
Phthalates
Limited concern
Formaldehyde / VOCs
Limited concern
Microplastics
Limited concern
Insulated cooler with unspecified waterproof treatment; PFAS status unknown.
⚠Waterproof or stain-proof treatment
Rubbermaid
Sidekick Small Ice Chest Cooler Lunchbox Flip Top Purple &
Plastic (PE/PP) with waterproof/insulating liner
Microplastic shedding or leaching
Limited concern
Bacterial or mold growth in foam liner
Moderate concern
Off-gassing or odor from new plastic
Limited concern
Likely lower PFAS concern, but no brand transparency on water treatments.
⚠Waterproof or stain-proof treatment
Oggi
OGIO 12L Lunch Box Flower Party - Flower Party
polyester lining with waterproof treatment, outer fabric unspecified
Waterproof coating composition (unknown fluorochemicals or polymers)
Limited concern
Azo dyes in 'Flower Party' print or fabric
Limited concern
Coating degradation and microparticle release
Moderate concern
Off-gassing or odor from new product
Limited concern
Lunch box with unknown waterproof coating; brand provides no PFAS details.
⚠Waterproof or stain-proof treatment
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