Pig iron and wrought iron wok SUPOR what is the difference?
It is understood that the iron pot has a characteristic, when the fire temperature exceeds 200 degrees, iron will send out through certain heat transfer to the food to control the temperature of 230 DEG C, and fine iron is directly to the temperature of fire to food. For the average family, use a cast iron pan. But the iron pot also has advantages, first, because it is a fine iron casting, less impurities, therefore, heat transfer is even, not prone to sticky phenomenon. Second, because the material is good, the pot can be made very thin, the pot temperature can be higher. Third, high grade, smooth surface, clean work, good to do.
Iron is made of gray iron casting made by melting model, slow heat transfer, uniform heat transfer, but the pot ring thick, rough texture, easy to crack; fine iron is made of black metal forging or hand hammer, the pan ring thin, fast heat transfer, the characteristics of beautiful appearance.
A "see", see if the pot surface is smooth, but not smooth, such as the mirror, due to casting process, the iron pan has irregular shallow lines. In general, the wok is rough, which is inevitable, and will become smooth after a long time. There are defects, small convex part of the general iron, the quality of the pot is not affected, but the small dent on the quality of the pot harm, the purchase should pay attention to observation. Two, "listen", uneven thickness of the pot is not good, when buying the bottom of the pot can be, with the fingers against the pan concave center, with a hard knock. The louder the pot, the stronger the vibrations, the better. In addition, there is a cat on the rust is not necessarily the quality is not good, there is rust pot that stored for a long time, and the storage time of the pot as long as possible, so that the internal organization of pot can be more stable, beginning with a crack. It is worth reminding that the pot ears are best wrapped with wood or other heat insulation material, if it is iron pot ears easily hot.
