Why is the skin loose and puffy on some of my tangerines?

Q: Why is the skin loose and puffy on some of my tangerines?

A: Those are delicious satsuma mandarin oranges! They have a naturally loose, sometimes bumpy peel. At first glance, people sometimes think they’ve gone bad—but they’re oh-so-good and super easy to peel—just zip the skin off, and eat.