First prepare raw peanuts, rinse them with clean water, dry the clean peanuts, and put them into a clean glass bottle, oil-free and water-free. Add an appropriate amount of rice vinegar. Try not to choose white vinegar, or use tartary buckwheat vinegar. . The ratio of peanuts to vinegar is 1:1.5. Don’t fill it too full. Cover and store it tightly. You can eat it after soaking for a week.