AKA actinidia deliciosa.Kiwi is a simple fruit to eat and although many people peel it, that is not a necessary step. The skin is thin, edible and similar in texture to a peach. Pick fruit that is firm but with a little give and without wrinkles. Unripe kiwis ripen in three to five days if you leave them out and they can be stored in the refrigerator up to two weeks if you put them in a plastic bag. Sliced or chopped kiwi can also be frozen.