Stainless steel lunch box, 27 oz, closed, in front of a cardboard box reading Free replacement seal includedStainless steel lunch box, closed, 40 oz, standing in front of its cardboard box and a cotton drawstring bag

Stainless Steel Lunch Box

Two dividers, three compartments. The spare seal is already in the box.

From $33.97
Insulated food jar, 18 oz, brushed stainless steel with gray lid, box reading Stays Hot 14 hrs, spork beside itInsulated food jar, 34 oz, brushed stainless steel with gray lid, next to its cardboard box and a steel spork

Insulated Food Jar

Warm lunch without a microwave. 14 hours hot, no preheating.

From $28.97
Stainless steel salad bowl 40 oz, closed, with spork and box labeled replacement seal includedStainless steel salad bowl with lid, closed, 60 oz, with spork and box labeled replacement seal included

Stainless Steel Salad Bowl with Lid

The spork is already in the box. Eat straight from the bowl.

From $27.97
Open lunch box with two dividers, carrots, heart sandwiches and strawberries; lid beside it engraved Sebastian in italicsBlockhütte stainless steel lunch box, closed, on a dry palm frond in sand, Elias engraved in bold block letters on the lid

Personalized Lunch Box with Name Engraving

Four positions, two fonts. Your name in the steel.

From $40.97
Insulated food jar with black lid, 24 oz, closed, next to its box reading Stays Hot 14 hrs, with a stainless steel sporkInsulated food jar colored, 24 oz, dark blue lid, closed, next to its box reading Stays Hot 14 hrs, with a steel spork

Insulated Food Jar

14 hours hot, no preheating. In four colors.

From $28.97
Food jar engraved Sebastian on a wooden table in the woods, with spork; laser engraving banner and an origin badgeBlockhütte insulated food jar with dark gray plastic lid on a wooden table, Sebastian engraved in italics on the side, spork

Insulated Food Jar

Your name in the steel. 14 hours hot, no preheating.

From $35.97

Frequently asked questions

Should I buy a lunch box or an insulated food jar?

If the food needs to still be hot at noon, take the jar. It holds heat for 14 hours. That works because you rinse it hot, fill it to the top and keep it closed. If it needs compartments for separate items, take the lunch box: it comes with two removable steel dividers. Many people end up with both, which is why they are also sold as bundles.

Is a stainless steel lunch box microwave safe?

No. Steel sparks in a microwave, and that applies to every stainless steel container, not just ours. The lunch box and salad bowl are oven-safe instead. Reheat in an oven, or bake directly in the box.

What size stainless steel lunch box do I need?

27 oz is a school lunch or a light meal. 40 oz is a full adult meal. 47 oz is meal prep with sides. If you are unsure between two, take the larger one, because a half-full box travels better than an overfilled one.

Is a stainless steel lunch box really leak-proof?

Yes, for everyday food. The lid seals against a silicone gasket and is tested against shaking and pressure, not just tipping. Thick stews travel fine. Clear soup travels upright.

Is stainless steel better than plastic for food storage?

For durability and health it is. Steel does not stain, warp, or scratch into grooves that hold bacteria. It sheds no microplastics and contains no BPA or phthalates. The trade-offs are honest ones: it costs more, it is heavier, and it cannot go in the microwave.

Are these dishwasher safe?

Yes, all of them. Take the silicone seal out of the lid once a week and wash it separately. That is what keeps it sealing like new.

Do stainless steel lunch boxes rust?

18/8 stainless steel does not rust under normal kitchen use. Small brown specks are usually deposits from tap water, or from contact with other cutlery in the dishwasher. They wipe off with a little baking soda.

How to choose the right lunch box, care for your stainless steel, and make everyday life more sustainable

The Conscious Living Guide