2, iron pot must be an excellent choice for cooking Chinese food! While conducting heat quickly, it will not release harmful chemicals. However, it should be noted that when the oil pan smokes, the oil temperature often reaches above 200℃. If vegetables are put into the pot at this time: the nutrients in vegetables are destroyed; The oil fume is big, which is not good for chefs; If the oil temperature is too high, the iron pan will be burnt easily.