Barley tea has the effect of returning milk, mainly related to the dosage. Barley tea does not return milk when consumed in small amounts, but has the effect of promoting breast milk and reducing swelling, but large doses, such as 60g or more in a single dose, can have the effect of returning milk. Barley tea has the effect of eliminating food and neutralizing, which is suitable for accumulation of food, especially if you have eaten too much pasta, and can help digestion and avoid abdominal distension caused by indigestion. Barley tea also has the effect of draining the liver, can be used for liver stagnation, liver and stomach disharmony, the breast is located on the liver meridian, so drinking barley tea can play a role in breast milk, but will play what effect depends mainly on the dosage. A small amount, such as 5-15g, can have a lactation effect or help dissipate the symptoms of breast nodules and milk accumulation, while a larger amount, greater than 60g, can have a back milk effect.