Klean Kanteen Rise Food Box 34oz Review: Durable Stainless Lunchware
Better than plastic on longevity and worse than glass on microwave-ability, it is ideal if your lunch travels.

Quick answer
The Klean Kanteen Rise Food Box 34oz is a grown-up lunchbox built to survive being sat on in a crowded bag. Made from 18/8 stainless steel, it holds a proper meal rather than just a small snack. It relies on a silicone-sealed lid to keep your food leakproof during transit. If you need a durable container to replace short-lived plastic, this is a practical choice.
What the wider world says
The Guardian recommended the food box, describing it as the bento box for people who have grown out of plastic Tupperware.
Our take
This container offers a clear upgrade over plastic when it comes to longevity. Built with 90 percent recycled steel, it handles rough commutes without cracking. The primary trade-off is heating convenience, as the stainless steel build is not microwave safe compared to glass options. While the metal body will last for years, keep in mind that the silicone lid seal will require periodic replacement over its lifespan.
Who it's for
This box is ideal for commuters, office workers, and students who pack a proper meal and need a leakproof container that can survive a bumpy bag ride. It is a great fit for anyone wanting to move away from plastic lunchware.
Who it isn't for
Skip this container if you routinely reheat your food in a microwave at work or school. It is also not for those who want a zero-maintenance piece with no parts to eventually replace.
What works
- Made with 90% recycled steel
- Silicone-sealed leakproof lid
- Fits a proper lunch, not a snack
What doesn't
- Not microwave safe
- Silicone lid needs periodic replacement
Our reviews are written by combining our own editorial notes and specs with positive coverage already published by independent outlets. We name every source so you can read them in full. We may earn a small commission on the Buy button — it never changes our verdict or ranking.