Is the Black+Blum Steel Food Bowl really leak-proof?

Black+Blum rates the vacuum-sealed lid as 100% leak-proof, and owners generally report it holds soups and sauces without spills. Seat the lid and lock it fully before packing it in a bag.

Can I put it in the microwave?

The bowl is listed as microwave safe, but the stainless steel body means you should follow Black+Blum's instructions and remove the lid before heating. Check the base markings before use.

How much food does 650ml hold?

About 650ml, roughly one generous lunch portion of pasta, salad or soup. It is a single-serving bowl, not a family-size container.

Is it dishwasher safe?

Yes, both bowl and lid are dishwasher safe. Hand washing the lid seal helps it last longer.

How does it compare with a plastic lunch box?

It is heavier and costs more than most plastic boxes, but the steel body keeps food off plastic and the sealed lid handles soups and sauces that clip-lid plastic boxes often leak.