Brand file
Every Thermos product we have scored, with the maker’s own words about materials and what those words leave out. Average across the range: 70.7 out of 100.
We have scored 3 Thermos products. They average 70.7 out of 100 on materials, and the spread between the best and worst is 22 points.
Of those 3: 3 name the surface that touches food at least to a material family; 3 state a country of manufacture; 1 have a materials claim backed by anything other than the maker’s own word.
| Product | Category | Score /100 | What it is made of |
|---|---|---|---|
| Thermos FUNtainer 12 oz Bottle · US | Bottles | 83 | 18/8 stainless · polypropylene #5 lid · silicone spout · LDPE stem · no interior coating |
| Thermos Stainless King 24oz · AU | Bottles | 68 | 18/8 stainless · lid polymer and gasket not named · made in China |
| Thermos FUNtainer 10 oz Food Jar · US | Lunchboxes | 61 | “Stainless steel”, grade never named · lid resin not named · gasket not named, though the |
Click a product to read the full record — the exact wording the maker uses, what is missing, and every source. Scores are out of 100 and measure materials, not safety: 83/100 means “bare, inert materials”. The rubric is here.
Thermos appears in Bottles · Lunchboxes. The Australian and American editions are scored the same way, so a product marked AU and one marked US are directly comparable.
New scores, brands that finally answered, and any rule change that affects what you can buy. The list is not open yet — email us and we will add you when it is.