It is best not to, because tea contains a lot of tannic acid, which belongs to acidic substances and can react with alkaline ions, which will also reduce the nutrition of milk; Tea contains caffeine, so it can refresh you. Caffeine will enter milk with the body's metabolism, and it will affect health after being absorbed by children. Tea also has the function of detumescence and diuresis, and it is easy to increase the kidney burden of lactating women after eating.