Fruit is fragile. Soft fruit, like plums, get smashed, and even harder fruits bruise easily. Packing fruit more than six inches deep means that the fruit on the bottom will be damaged.
It’s best to store harvested fruit in shallow cardboard boxes (deep boxes increase the likelihood that fruit on the bottom will be crushed or bruised). Sturdy cardboard is also important for supporting the fruit, and smaller boxes are easier to lift and carry.
Avoid putting fruit in plastic bags. Since the plastic doesn’t ‘breathe’, moisture produced by the fruit is retained in the bag, and fruit spoils more quickly.
If you need to store fruit overnight, put it in a cool place.