Preparation materials: distiller's grains: appropriate amount, wooden barrel: one, big bowl: one, aluminum pot: one bite, towel: appropriate amount, water: appropriate amount.

1. First, prepare a clean and waterless wooden barrel, and then pour an appropriate amount of distiller's grains to flatten it.

2. After the distiller's grains are put away, put them into a clean bowl without water and oil.

3. Put the barrel with distiller's grains into the pot, and then wrap the mouth of the barrel with a towel.

4. Put the clean anhydrous aluminum pot on the towel, and pay attention to make the internal seal of the barrel airtight to avoid air leakage.

5. Pour a proper amount of water into aluminum pot and boil it. Change the water when it is a little warmer.

6. After changing the water, burn it until it is hot, and then take out the big bowl in the bucket, and the white wine will be fine.