Quercus suber has many uses including food, medicine, repellent, wood and other various things. Its seeds are edible when cooked, and can be made into several different foods such as breads, or made into powder. Its seed can also be roasted as a coffee substitute. Medicinally, Quercus suber produces a strong astringent that is useful in treating hemorrhages, chronic diahrrea, dysentery and other similar medical problems. The bark from Quercus suber is commonly cultivated and used to make cork. In order to do this, the bark is carefully cultivated from the trees, so that the trees aren’t harmed. By doing it this way, the bark can be collected to make cork, but the tree remains unharmed, and can grow new bark.