2. Control the temperature: put the soup water dish in room temperature 25-30 degrees, which can start the fermentation process faster.
3. Keep the soup vegetable moist: sometimes the fermentation process of soup vegetable will be affected by humidity, too dry soup vegetable will slow down the fermentation, you can soak the soup vegetable in water to ensure the humidity to speed up the fermentation.
4. Moderate amount of sugar: Adding moderate amount of sugar to the soup water dish will help to speed up the fermentation.
5. Add Fermented Tapioca: Fermented tapioca can increase the fermentation speed of the soup water dish and can add flavor to the soup water dish.