It is relatively mild According to the "Compendium of Materia Medica" records: "Barley taste sweet, sexual flatness, have to go to the food treatment of bloating, eliminating the accumulation of food, calm the stomach and quench the thirst, summer heat in addition to the heat, the benefit of the qi regulating the middle, broad chest atmosphere, fill the deficiency of inferiority, strengthen the blood, benefit the color, the real five viscera, and the transformation of cereal and food functions." Barley tea contains 17 kinds of trace elements needed by the human body, more than 19 kinds of amino acids