According to "Compendium of Materia Medica", "Barley is sweet in taste and flat in nature, which has the effects of promoting digestion and swelling, resolving stagnation, calming stomach and quenching thirst, relieving summer heat and removing heat, invigorating qi and regulating middle warmer, broadening chest and atmosphere, and tonifying deficiency, and can strengthen blood vessels, invigorate qi and color, strengthen five internal organs and dissolve grains. Treating urinary stranguria; Wait for the wheat awn to enter the eye; Treating senile polydipsia, uncertain drinking water and dry tongue; Control water and gas diseases; Clearing heat and relieving summer heat in summer; Treat acute pharyngolaryngitis, tonsillitis and throat abscess. Barley powder can be eaten, and barley can also be made into beer, which can help digestion, soothe the liver and replenish qi, and help regulate gastrointestinal function.

Barley tea is mainly used for clearing away heat and toxic materials, strengthening spleen and slimming, clearing away heat and relieving summer heat, removing fishy smell and greasy, helping digestion, moistening skin and blackening hair. Barley tea can also be used for:

(1) Overeating, chest distress and abdominal distension, and frying black clothes and grinding clothes have anti-inflammatory, repercussive, moderate and antidiarrheal effects.

(2) Children who accumulate food, are sallow and emaciated, the elderly and the weak, and those who eat less and are weak, take coix seed with sugar to benefit qi and strengthen the stomach.

(3) Gastrointestinal ulcer, with barley as the staple food, can calm stomach qi and stop dull pain.

(4) Clearing away heat and quenching thirst, decocting barley with water to make tea, clearing away heat and promoting fluid production, and quenching thirst.