■ Leave grapes on the stem but remove any grapes that are shriveled, brown, or moldy.
■ Grapes can be kept on the counter top for a day or two, but last longer when refrigerated. Place them in an open container or perforated plastic bag. For best quality, use within 7 to 10 days.
■ Rinse under cool water just before eating. Extra moisture during storage speeds spoilage.