Zest is a food ingredient that is prepared by scraping or cutting from the outer, colorful skin of citrus fruits such as lemon, orange, citron, and lime. Zest is used to add flavor (“zest”) to foods.
For culinary use, a zester, grater, vegetable peeler, paring knife, or even a surform tool is used to scrape or cut zest from the fruit. Alternatively, the peel is sliced, then excess pith cut away.
The white portion of the peel under the zest (pith, albedo or mesocarp) is unpleasantly bitter and generally avoided by limiting the peeling depth. The pith can be used for cooking.
Recipes using Lemon Peel, Rind or Zest