Is Thermos dishwasher safe?
Sometimes — with care
Thermos is generally not dishwasher safe, but some models may be top-rack dishwasher safe.
Quick facts
| Dishwasher safe? | Sometimes — Sometimes — with care |
|---|---|
| Category | Containers |
| Source | Researched — confirmation in progress |
| Last checked | 2026-06-17 |
Why
Most Thermos products are made of stainless steel with vacuum insulation, which can be damaged by high heat and harsh detergents in dishwashers. The vacuum seal may fail, and the exterior finish can discolor or peel. Always check the manufacturer's instructions for your specific model.
How do you wash Thermos?
Hand wash with warm soapy water and a soft sponge. Rinse thoroughly and air dry with the lid off to prevent odors.
More containers
Last updated 2026-06-17. General guidance — always check your product’s care label. How we verify.