How to make watermelon sauce

The preparation method of watermelon sauce is as follow:

1. Material preparation: 20 kg of soybeans, 40-60 kg of watermelons, 5 kg of ginger and 5 kg of salt.

Second, the steps:

1. After selecting soybeans, clean them, put them in a large pot and cook them until they are 80% mature, spread them evenly with bamboo curtains or summer sleeping mats, and cover them with gauze (naturally ferment in warm and weak light, or inoculate soy sauce koji, and white hyphae with a length of 1-2 cm will densely grow on the beans after about 7- 10 days), so that each soybean will grow.

2. Peel watermelon, shred ginger, boil with salt water, add soybean ginger, boil again, let it cool, add watermelon (watermelon juice: remove seeds from cooked watermelon, peel it, put it in a jar, brew beans or bean powder, add the amount of watermelon juice, depending on the amount of submerged beans), and finally put it in a jar for fermentation.