<<Disclaimer: Verify this information before applying it to your situation.>> Hi Listmates, I just spoke with a customer service representative at McCormicks at 800-632-5847. She confirmed that all pure spices are GF as are most blends. (Be sure to check the ingredients label on the blends.) Their extracts and flavorings are GF as well. Some of their mix packets are GF and some are not. She recommended checking the ingredients label as gluten will be plainly listed as an ingredient. She also advised that on all McCormicks products, the ingredients label would plainly state if wheat, oats, rye or barley was an ingredient. Have a safe, happy holiday season! Barbara in Illinois