2. If the temperature is controlled up and down, the hot plate is about 60 degrees. The lower plate shall be inspected every 10 minute (20-30 degrees if using heat conducting appliances such as iron plate and stainless steel, and 40-50 degrees if using ceramic appliances). If you feel the temperature is high, reduce it by about 5- 10 degrees each time.
Tip: Don't rush for success. Although high temperature can cook bean skin quickly. But there is a lot of water in it. Although it can be achieved in the sense, it cannot achieve the finished product effect in essence. Slow fire.