A fresh zucchini is firm to the touch all over, and any softness indicates an old zucchini that is no longer Fresh can be in the refrigerator for about five days. It is best to dry them well with a towel and wrap one in a paper towel putting them in a snug pl bag in then the refrigerator. This dry environment prevents spots from forming the skin The skin is removed before eating. The mild r of zucchini allows be added to many different kinds of dishes