Orange peel zest is the high oil outer peel of the orange, without the bitter white section. Try adding this dried orange zest to breads, cookies, pies, and other desserts. Orange peel can be added to rice for extra flavor, or used to spice up hot or iced tea.Dehydrated orange zest has a concentrated flavor, so you only need add a third of what your recipe calls for in fresh peel. To rehydrate, add three parts water to one part peel and let stand 15 minutes. We recommend these grated orange peel zest granules be kept in an air-tight jar. The essential oil content, which gives it such a strong flavor, is so high that it will actually degrade a plastic bag in a matter of hours. Ingredients: Orange peel.