Which season is best for brewing sour horse milk

Summer. Sour mare's milk is a drink made from horse milk by fermenting the milk with a variety of tunes. Summer is the best season to make sour horse milk. In summer, the grass flourishes and the horses eat fresh grass, which produces milk with a light grass flavor and is very fresh. Fresh horse milk is stirred constantly with a wooden stick, and the milk will gradually ferment and become acidic, producing a small amount of alcohol.