Get the Thermos food jar. Not the cute glass one.

If you eat soup or stew most days, get a vacuum-insulated food jar like the classic Thermos Stainless King — it’s the only thing that reliably keeps liquid hot and doesn’t leak.

Regular lunch containers lie about being leak-proof. Broth finds every seam. A food jar’s entire job is holding liquid, so it’s engineered differently — the lid seals, and the wide mouth makes it easy to eat out of with a spoon.

The vacuum insulation is the other half of it. Whether you pre-heat the jar with boiling water before filling it, hot stew will still be hot at noon. That’s the whole point of soup for lunch — it should be warm, not sad-room-temperature.

If you’re willing to spend more, the Zojirushi food jar has a better lid and slightly better heat retention. But the Thermos is cheaper, tougher, and does the job. Get the 24-ounce if you have a real appetite; 16 if you’re a smaller eater.

Lukewarm soup is a soup crime.