Oven-safe lunch boxes are a distraction.

The best stainless steel lunch boxes with compartments are the boring, well-sealed ones from LunchBots or EcoLunchbox — and yes, the steel part can technically go in the oven, but the lids and seals can’t, and you don’t need that anyway.

Stainless steel is the right call for zero-waste lunch packing: it doesn’t leach, doesn’t stain, doesn’t hold odors, and it’ll survive years of being thrown in a bag. Compartments are great for keeping hummus off your apple slices, but don’t overthink the design. Look for a divided tray with a lid that actually snaps shut, no plastic touching your food, and a shape that fits your lunch bag.

The oven question comes up because people want to reheat lunch in the same container. That’s a mistake. The metal itself handles oven temps way beyond anything you’d use —