PlanetBox Stainless Steel Bento Lunch Box
PlanetBox
Stainless Steel Bento Lunch Box
A stainless steel bento with certified post-consumer recycled trays and no plastic touching food, built to last a decade or more; a 1, with weight and upfront cost the only trades.
Compartmentalized stainless steel bento with a magnetic lid that lasts a decade or more. Trays use certified post-consumer recycled stainless steel.
How this score breaks down
Strengths
- Stainless steel bento replaces plastic lunch containers
- Magnetic lid, no plastic touching food
- Lasts a decade or more
- Trays use certified post-consumer recycled stainless steel
Trade-offs
- Higher upfront cost than plastic boxes
- Heavier than a plastic container
Scored on our durable-goods method (durables-v1, 2026-05-30). How we rank →
What's inside
A compartmentalised bento lunch box made from stainless steel with a magnetic stainless lid, so no plastic touches food. Trays use certified post-consumer recycled steel.
| Part | Material |
|---|---|
| Box and lid | Stainless steel, partly recycled |
| Closure | Magnets embedded in the steel lid |
Free of BPA, phthalates, plastic food-contact
- Packaging
- Plastic-free; recyclable stainless steel
- Microplastics
- None; steel body
Attributes
What this product is, at a glance.
Certifications
None listed. We only show independent third-party certifications we can verify with the issuing body, and this product does not currently hold any.
About PlanetBox
PlanetBox is a lunchware company founded in 2009 by Robert and Caroline Miros, parents who shared a vision for a more sustainable lunchbox. It makes stainless steel bento-style lunchboxes along with water bottles, food containers, and lunch accessories.
The stated mission is to make cutting plastic easy, one lunch at a time, with durable steel meant to last for years. The brand makes no third-party certification claims; its pitch is that stainless steel is non-leaching, recyclable, and long-lasting, and it sits at a premium, durable price point.
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