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.
In terms of
fruit anatomy, zest is obtained from the flavedo (exocarp).
The flavedo and
white pith (albedo) of a citrus fruit together makes up its peel. The amounts
of both flavedo and pith are variable among citrus fruits, and may be adjusted
by the manner in which they are prepared. Citrus peel may be used fresh, dried,
candied, or pickled in salt.
