Certified Gluten-Free. Caffeine free. Non GMO Project Verified. nongmoproject.org. Great hot or iced! Blending herbs, art and inspiration. Since 1969. Blendmaster's notes. Raspberry Zinger: This robust herbal brew gets its sweet-tart aroma and taste from tangy, fruity hibiscus (the zing in every Zinger tea) and ripe, red raspberry flavor. Served warm, this bold blend is soothing and satisfying. Served over ice and it's the very taste of a summer's day. Charlie Baden, Celestial Seasonings Blendmaster. The Story of Celestial Seasonings: Back in 1969. We started picking herbs from the fields and forests of the Rocky Mountains and at that moment, we created America's very first herbal tea. Still blended in Boulder by our expert Blendmaster, our uniquely delicious teas are made with the finest ingredients, passion and inspiration. Between true friends, even water drunk together is sweet enough. - Zimbabwean Proverb. Hain Celestial. celestialseasonings.com. Tell us what you think: 1-800-351-8175, celestialseasonings.com. Please use this number in all correspondence related to this product. Blended in Boulder. Co.