There’s a quiet, and lightly caffeinated, trend brewing in America. The U.S. Market for tea has more than quadrupled during the last 20-plus years from under $2 billion in 1990 to just over $10 billion last year, according to the U.S. Tea Association. Tea has infiltrated most Americans’ everyday routine with the U.S. Tea Association reporting that some 80 percent of the U.S. households have tea in their kitchens, and more than half of the American populace drinks tea on a daily basis. In addition, a vast majority of American tea drinkers are partial to ready-to-drink tea bags.