Summer is prime time for fruit. If you are surrounded by a bounty of berries or other summertime favorites that you’d like to use later in the year, freeze them as close to harvest time as possible. To preserve quality and taste, rinse fruit in cool water in a colander and drain well. For fruits apt to brown or darken during freezing, dissolve ascorbic acid in water and then drizzle it over the fruit (or mix it into a sugar syrup if you’re freezing the fruit in one). Berries do best if they are dried and placed on a tray in a single layer, frozen for 30 minutes and then packed into freezer bags or high-quality freezer containers. Peach slices can be prepared the same way, frozen for several hours on a tray and then transferred to containers for freezing.