
Zest refers to the outermost layer of citrus fruit peel, carefully removed without including the bitter white pith underneath. It's intensely aromatic and flavorful, capturing the essential oils of the fruit. Depending on the citrus, zest can be vibrant yellow (lemon), bright orange (orange), or deep green (lime). The texture is slightly dry and firm, and a small amount of zest can impart a burst of fresh, citrusy flavor to both sweet and savory dishes. Search for ways to use lemon zest in baking, discover the flavor benefits of orange zest in sauces, or learn how lime zest can elevate your cocktails.
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Zest is best used fresh for optimal flavor and aroma. If you need to store it, place the zest in an airtight container or a small zip-top bag, pressing out any excess air. Store it in the refrigerator for up to a week. For longer storage, you can freeze zest in a single layer on a baking sheet, then transfer it to a freezer bag. Frozen zest will keep for several months, though the flavor may diminish slightly over time. Avoid storing zest at room temperature, as it will quickly dry out and lose its potency.