Take it off, leave it on, harvest a twist for your martini or discard it entirely. One fruit’s exocarp is another fruit’s trash.

A fruit’s exocarp refers to its outermost shell, skin or otherwise protective layer. In citrus fruits, the exocarp can be zested and added to any number of dishes or drinks. In watermelon, the exocarp is usually discarded (but really should be pickled and eaten). In stone fruits, the exocarp is eaten in its entirety.

Use today’s Word of the Day: Citrus Dry-Rubbed Ribs Recipe