World’s First Cold Coffee. Nitro cold brew coffees are the recipe of Famous Coffee in the world Starbuck.Cold brew coffee has taken the world by storm. Increased flavor and the ability to taste more nuanced undertones has made this form of brewing the new industry standard and Nitro’s Cold Brew E Liquid has captured the true essence of these intricate, detailed coffee shop creations. Offering juices that will impress even the most critical of coffee connoisseurs, these will become a necessary part of your everyday routine.