Store Kyoho grapes in a perforated plastic bag in your refrigerator.
Kyoho grapes are an unusual variety in that they are most often peeled before consumption. Fortunately their large size and firm flesh makes this rather easy. Simply twist a grape off the stem, and use the stem-hole as a starting point to peel the skin off in large strips.
The easiest (and most traditional) way to enjoy them is peeled, lightly chilled, and served with a small dish for spitting out the seeds.
Kyoho grapes also make show-stopping preserves, as well as delicious juice and desserts.