The fire mentioned in the recipe is also called wanghuo, and the temperature is 100 degrees Celsius and above. Medium fire at 80-60 degrees Celsius; The small fire is at 50-40 degrees Celsius. There is also a kind of fire called micro-fire, and its temperature is 30-20 degrees Celsius. When cooking, you can observe what fire it is and the approximate temperature of the fire from the shape of the flame.

The pillar of fire will stick out of the pot, the flame will be high and steady, the fire color will be blue and white, and the heat will be pressing; The firepower of the medium fire is between the big fire and the small fire, and the pillar of fire slightly extends out of the pot, so the flame is low and unstable, and the light is blue-red and bright. The small pillar of fire will not extend out of the pot, and the flame is small and sometimes high and sometimes low, with blue-orange light, dark luminosity and low heat; A small fire has a weak flame, blue color, dark luminosity and low heat.

Extended data:

In cookbooks, a small fire in a big fire is what we usually call the temperature. In the cooking process, according to the raw materials and cooking methods of the dishes, the amount of firepower and the length of time used; If the heat is not enough, the dishes will not be tasty or even half cooked; If you overdo it, you won't be able to cook fresh and smooth dishes, or even burn them.

Baidu Encyclopedia-Temperature (Cooking Term)