Denver-based Teakoe Tea Supply Co. said it added Teakoe Fizzy black tea to its line of sustainably sourced, whole-leaf, fresh-brewed ready-to-drink Teakoe teas. The company’s functional teas are purposely blended to cultivate healthy, happy and fulfilling lifestyles. The black tea variety is cold-brewed and naturally sweetened with honey and real lemon juice. It contains 30 calories and 130 milligrams of caffeine per 12-ounce can.