<<Disclaimer: Verify this information before applying it to your situation.>> I sent an email to Celestial Seasonings regarding GF teas, received the following response: Thank you for taking the time to send us an e-mail. We appreciate your interest in our company and its products, and we greatly value your comments. Our goal is to offer only the finest quality products and service; people like you help us reach that goal. In response to your inquiry re: HVP, we are happy to assure you none of our products contain hydrolyzed vegetable proteins. Celestial Seasonings uses only natural flavors, primarily derived from fruits or spices. Some natural flavors are extracted using grain alcohol derived from corn. According to our reference sources, this should not be an area of concern and should not interfere with a gluten-free regimen. Persons who have reactions to gluten should avoid consuming any wheat, barley, oats or rye. Some Celestial products contain roasted barley and/or roasted barley malt. They are always listed on the label when present. These include, but may not be limited to (check the labels, we are constantly adding new ones): Almond Sunset, English Toffee, Ginseng Plus, Roastaroma, Sugar Plum Spice, Vanilla Hazelnut. We encourage you to call us toll-free at 1-800-351-8175 if you have additional questions or would like further information about our products. We value your continued interest in our company. Thank you again for contacting us. Sleepy Bear Good News for all the Herbal Tea Lovers!!! Susan