FOOD RESOURCE COLLEGE OF HEALTH AND HUMAN SCIENCES, OREGON STATE UNIVERSITY
OAK CHIP EXTRACT
Ruth Winter.1978. A Consumer's Dictionary of Food Additives. Crown Publishers, Inc., New York.
Extract from the white oak used in bitters and whiskey flavorings for beverages, ice cream, ices, candy, baked goods, and whiskey (1,000 ppm). No known toxicity.