Excess moisture can cause most fruits and veggies to spoil prematurely. Avoid prewashing leafy greens and berries, but if you must, make sure the produce is dried thoroughly before storing. Wrap dried leaves in a clean towel to absorb excess moisture and store in a plastic bag in the fridge. Make sure berries are dried thoroughly before storing in the fridge in an air-tight container. It’s helpful to give berries space by using flat containers with abundant surface area. Storing cut vegetables, like carrots, celery, and potatoes, in water can help prolong their freshness.