what is zester

A zester is a kitchen utensil used to obtain zest from lemons and other citrus fruit by scraping or cutting the outermost layer of the peel into fine strips or shreds. It typically has a handle and a curved metal end with small, sharp- edged holes or graters that finely shave the fruit's peel without including the bitter white pith underneath. Zesters are used to add concentrated citrus flavor to dishes, desserts, and beverages. They can also be used for zesting other firm foods like hard spices or cheeses in some cases.