When cooking, it is very important to master the temperature of the oil. Don't use slow fire for those who should use strong fire, and don't use urgent fire for those who should use slow fire. The temperature of oil is too high or too low, which will also affect the flavor of cooking. Especially cooking, if the oil temperature is too high, cooking will be cooked outside; When the temperature of the oil is too low, the pulp and paste hanging on the fried vegetables are easy to fall off, making the vegetables not brittle.