I cannot say how much zest one fruit yields. This is more of a technique. I needed dried zest for recipe #461844 #461844 and found the store-bought stuff just ridiculously expensive. Citrus zest enlivens various recipes: tea blends, mulled cider, cakes, pies, oatmeal, cookies, jellies & preserves, use in place of extracts, in caking frostings, flavored honey & butters, meat rubs, sauces & bbq sauce or give as a gift. Cook time is drying time.