Red and purple grapes should be free of any brown or green spots — and they should be either deep red or deep purple in hue. Meanwhile, green grapes will have a yellowish-green color.

Dry stems indicate the fruit has aged. Firm are best: The grapes should be firm with no signs of shriveling, and check their ...

Whether you prefer purple, red, or green varieties, grapes are a classic (and delicious) fruit. They're also a popular snack, thanks to their small size and portability. But eating grapes isn't ...