Barley is warm, helps digestion, and helps people with indigestion (barley helps to digest rice and flour foods, and hawthorn helps to digest meat foods). Barley tea bags can be brewed directly. Barley grains can be boiled in water or soaked in boiling water for a while before drinking. Barley tea is a good common drink for people who are afraid of cold and are not suitable for drinking green tea. Drink it often. It smells good and tastes good. However, it should be noted that barley malt has the function of returning milk to lactating women.