Stainless steel is the only lunch box that survives a backpack

Stainless steel is the only lunch box that survives getting tossed around a backpack without cracking.

Plastic lunch boxes crack. It’s not a matter of if, it’s a matter of when. Cold temperatures make them brittle, and one sideways drop onto a corner creates a stress fracture that splinters after a few more tosses. Even the good ones—Bentgo, Sistema, whatever—are still plastic. They’ll chip and break eventually.

Stainless steel doesn’t crack. It gets dented, scuffed, and scratched, but it stays in one piece. You’re looking for a bento-style box with a metal latch, like the PlanetBox or EcoLunchbox, or just an old-school steel lunchbox with a thermos. If you want zero hassle, a plain stainless steel food container with a locking lid works fine and costs like $10.

One tip: avoid anything with a plastic clasp. The box might be steel, but the latch is the weak point. Get a box with a durable metal latch or a simple over-the-edge lid.

Your lunch will make it through the semester. Your backpack, on the other hand, might not.