For salad, dressing containers beat air vents.

The best lunch box for keeping greens crisp is one that keeps the dressing separate and gives the leaves breathing room—not a fancy vent system.

Moisture is the enemy. Dressing wilts lettuce in minutes, and condensation inside a sealed box does the same slower. So the feature that actually matters is a built-in dressing container or a separate little jar. Vents sound smart, but they’re overrated: too much airflow dries greens out, and most lunch boxes don’t vent enough to make a difference anyway.

If you’re shopping, the Bentgo Fresh Salad Container does this well—it has a dressing cup, a fork, and enough space that leaves aren’t crushed. The mason jar method works too: dressing at the bottom, hearty toppings next, greens packed on top, shaken out at lunch.

Whatever you get, dry the greens well and toss a paper towel in the lid to absorb condensation. That trick does more than any vent ever will.

Your salad will taste like you made it an hour ago, not four hours ago.