100% Natural Teas Cool Brew - Brews in Cold Water! Ready in Five Minutes! Kosher Gluten Free Contains Caffeine Cool Brew Iced Teas are refreshing blends of juicy fruit flavors with delicious herbs and teas. Best of all, they brew in cold water in just five minutes — no boiling required! Like all Celestial Seasonings products. Cool Brew Iced Teas are made with natural ingredients and are free from artificial colors, flavors and preservatives - so all you taste is the natural goodness of fine teas, herbs, fruits and flavors. Orchard-fresh peach flavor lends its sweetness to robust black tea in Peach Cool Brew. Our Natural Heritage In 1969, Celestial Seasonings began picking fresh herbs in the fields and forests of the Rocky Mountains and blending them to create healthy, flavorful teas. Today, our team of tea experts sources more than 100 of the finest herbs, teas, spices and botanicals from over 35 countries to create our distinctive blends.