Zest is the colorful outer layer of citrus fruit peel, containing aromatic oils that add flavor to cooking and baking. You can grate zest from fruits like lemons, limes, oranges, grapefruits, and even certain types of mandarins.
Zest is essentially the outer peel of citrus fruits, carefully removed to avoid the bitter white pith underneath. This outer layer is packed with essential oils that give citrus fruits their distinctive aroma and flavor. When you grate or peel zest, you're releasing these oils, which then infuse your dishes with a bright, citrusy taste.
The most common fruits for zesting are:
To zest a fruit, use a microplane, zester, or fine grater. Gently rub the fruit against the grater, rotating it as you go, being careful to only remove the colored outer layer and avoid the white pith.
Before zesting any citrus fruit, thoroughly wash and dry it to remove any wax or residue from the peel. This ensures you're only adding pure citrus flavor to your recipe.