Oak resin, also known as oak sap, is a thick, sticky liquid that is produced by oak trees. It is an important natural product that has been used for centuries for a variety of purposes, including woodworking, medicine, and food.
Oak resin is produced by the tree as a way to protect itself from pests and diseases. The resin is made up of a number of different compounds, including terpenes, phenols, and fatty acids. These compounds give the resin its characteristic sticky texture and strong smell.