Sushi and soft fruit survive the backpack if you pack them tight

The secret to keeping sushi rolls and soft fruit intact in a backpack is to stop them from sliding around.

Most lunchbox failures aren’t about crushing—they’re about shifting. One bump makes the fruit roll into the sushi, the rice loosens, the avocado smears. Fix that by choosing a container that fits the food snugly. If there’s empty space, fill it with something soft and edible: a lettuce leaf, a folded napkin, even a few grapes. Now there’s nowhere to go.

For sushi specifically, wrap each piece in a tiny strip of plastic wrap or parchment before it goes in. It sounds fussy, but it also keeps the rice from sticking to everything else. And put soy sauce in a small leakproof dip pot, not a plastic baggie you hope will stay sealed.

Soft fruit gets the same treatment: use a hard-sided container with a lid, and line the bottom with a paper towel to catch moisture. Don’t stack berries more than two layers deep. If you’re carrying stone fruit like peaches or plums, wrap them individually in a paper towel—it cushions them and soaks up the drip.

Your lunch should arrive looking like food, not a science project.