For bento apples, salt water beats lemon juice

A quick salt water soak keeps apple and pear slices from browning for hours and doesn’t leave any weird flavor.

Lemon juice works, but it changes the taste, and nobody wants their fruit to taste like salad dressing. The salt water method is what Japanese bento makers actually use. Dissolve about half a teaspoon of salt in a cup of cold water, soak the slices for 5 minutes, drain, and pack. It stops the oxidation enzyme cold, and your fruit just tastes like fruit.

Rinse them lightly after the soak or they’ll be salty, then pat dry before packing. That buys you 4-6 hours easily.

If you’re packing a whole apple for older kids, the rubber band trick is even better: slice it, press it back together, and hold it with a rubber band. Only the pressed-together cut edges brown, and the slices taste like a fresh apple at lunch.

The salt soak is the one to remember. It’s the difference between sad brown fruit and fruit your kid actually eats.