PlanetBox Insulated Hot or Cold Food Container
A vacuum food jar with a steel screw lid and a silicone gasket - no plastic collar or plastic lid liner, which is how most food jars are built.
The verdict: Silicone only
71% recycled food-grade 304 stainless inside and out, sealed by a silicone gasket. What is missing is the notable part: the standard vacuum food jar has a moulded plastic lid - sometimes with a plastic collar and a plastic fold-out spoon clipped inside - and that plastic sits directly above hot soup for hours, which is the worst combination of heat and dwell time in a lunch bag. Here the lid is steel with a steel handle, and the only elastomer is the gasket in its thread. The decorative magnet clipped to the lid exterior sits outside the sealed cavity entirely.
What it's made of
| Part | Material | Food contact |
|---|---|---|
| container body 71% certified post-consumer recycled 304, double-wall vacuum insulated | Stainless Steel 304 / 18-8 | Yes primary |
| lid steel screw lid with a fold-down steel handle; no plastic collar or liner | Stainless Steel 304 / 18-8 | Yes primary |
| lid gasket LFGB silicone; sold as a replacement part | Silicone | Yes seal |
| decorative magnet printed magnet disc that clips to the outside of the lid; outside the sealed cavity, and removable | Metal unspecified | No |
A 10oz vacuum flask for soup, yogurt, pasta or anything else that needs to stay at temperature - about 6 inches tall and 3 across, so it stands up inside a Rover carry bag. It holds hot or cold for up to 12 hours. The mouth is wide enough to eat straight out of and to get a sponge into, and the lid folds a steel handle flat against the top. Sold in the same printed magnet designs as the lunch boxes, with the magnet sitting on the lid face.
Pros
- Steel lid rather than the usual moulded plastic one, so nothing plastic sits over hot food
- 12 hours hot or cold
- Wide mouth - eats like a bowl and washes easily
- Gasket is a replaceable part
Cons
- 10oz is a modest portion for an adult
- Reviewers report the steel-on-steel thread can bind and squeal
- Hand wash recommended
- No spoon included, unlike most food jars at this price
Notes
- Remove the decorative magnet before washing.
- The replacement gasket is sold separately as the Insulated Hot or Cold Food Container Gasket.
- Steel thread on steel thread means no plastic, but it also means grit in the thread is felt immediately - rinse the rim before closing.
Common questions
Does the PlanetBox Insulated Hot or Cold Food Container have plastic in it?
No petroleum plastic touches your food. On the PlanetBox Insulated Hot or Cold Food Container, the lid gasket is silicone, and the rest of the food path is stainless steel.
What is the PlanetBox Insulated Hot or Cold Food Container made of?
Part by part, the PlanetBox Insulated Hot or Cold Food Container is: container body — stainless steel; lid — stainless steel; lid gasket — silicone; decorative magnet — metal.
Does the PlanetBox Insulated Hot or Cold Food Container contain lead?
No detectable lead was found in the PlanetBox Insulated Hot or Cold Food Container. That finding comes from a third-party certificate published by the brand, not our own testing.
Does the PlanetBox Insulated Hot or Cold Food Container have silicone in it?
Yes — the lid gasket is silicone on the PlanetBox Insulated Hot or Cold Food Container. It is a seal rather than a surface your food sits against, which is stainless steel.
Is the PlanetBox Insulated Hot or Cold Food Container BPA-free?
No plastic touches your food on the PlanetBox Insulated Hot or Cold Food Container — the food path is stainless steel and silicone — so BPA, which comes from polycarbonate and epoxy plastics, is not in play here.
Where is the PlanetBox Insulated Hot or Cold Food Container made?
The PlanetBox Insulated Hot or Cold Food Container is made in China.
Categories: Food Storage Containers · Lunch Boxes
Sources
Every material claim above is backed by these. This is the scattered info we centralized.
- manufacturer https://www.planetbox.com/products/insulated-recycled-stainless-steel-food-container spec line reads - Made of food-grade 71% certified recycled 304 stainless steel, LFGB silicone. Lead-free solder; capacity 10 oz, vacuum insulated 12 hours, handwash recommended
- manufacturer https://www.planetbox.com/products/insulated-hot-or-cold-food-container-gasket replacement gasket sold as its own part, confirming the silicone is a discrete removable seal rather than a bonded lid liner
Spot a mistake or something out of date? Let us know — corrections are how this stays accurate.