Sweet wine quarts, also known as white medicine. Preparation: ① 150-200 grams of fresh Polygonum officinale. When picking polygonum, choose the upper part of the young white stem and leaves, and to pick around the eighth month of the lunar calendar is good. Then wash and dry, chopped for use. ② rice 750 grams. Soak the rice in warm water for 15-20 minutes, then filter the water, pinch with your fingers, such as into a powder. ③ Select the sweeter aged sweet wine quartz 2 grains. Production: Pour the rice into the mortar (rural pounding tools), while pounding with a powder sieve sieve, pounding to the mortar only half a bowl of broken rice, and then add polygonum together with the pounding, to be pounded, the sieve out of the rice flour poured into the mortar to continue to pounding, until pounding to the polygonum and the rice flour uniformly, before you can remove. Pinch them tightly into small balls with your hands to prevent them from falling apart. In the pinching system, such as pinch not together, can be mixed with a small amount of water and then pinch, every 0.5 kilograms of rice can be made into small pills 100 pills, small pills done, with a sieve with. Then will be 2 grains of old wine into powder, sprinkled in the newly made small balls, dressing cover a layer, gently moving a few times, covered with a thick clean towel. After 24 hours of fermentation, the towel is removed, and if each ball (of the new brew) grows a layer of light white fur like a maple ball and smells fragrant, it is a proof of successful production. The last key process is drying the wine. In the first 2-3 days, half a day in the sun, half a day in the shade, and then all day in the sun, usually about a week to dry. The finished wine song with a bag, placed in the quicklime tank, keep it dry.