Is Thermos Food Jar dishwasher safe?
Not dishwasher safe✓ Verified
Thermos Food Jar is not dishwasher safe.
Quick facts
| Dishwasher safe? | No — Not dishwasher safe |
|---|---|
| Category | Containers |
| Source | Manufacturer guidance / material science |
| Last checked | 2026-07-28 |
Why
Thermos food jars are typically made of stainless steel with a vacuum insulation layer and a plastic lid. The high heat and moisture in dishwashers can damage the vacuum seal, degrade the plastic lid, and cause rust or corrosion over time.
How do you wash Thermos Food Jar?
Hand wash with warm soapy water and a soft sponge. Rinse thoroughly and dry with a soft cloth. Avoid abrasive cleaners or scrubbers.
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Popular checks
Last updated 2026-07-28. General guidance — always check your product’s care label. How we verify · Dishwasher care guides.