Hanle Zhangqiu blue iron pot is very good. First of all, there are hand-forged fine hammer marks on the wall of the pot in Zhangqiu Blue iron pot of Hanle. Because it is forged by hand, it will not be too regular. Anything without hammer marks or too regular is mechanically pressed rather than forged by hand. Hammer marks penetrate the bottom of the pot through the wall, and forging marks can also be seen at the bottom of the pot. Zhangqiu iron pot knocks on the wall like a bell, which is very crisp and long, while the sound of the machine pressing the pot is dull. Zhangqiu Iron Pot benefited from 12 process, including 7 hot forging, 5 cold forging and 36,000 hammer forging, which made the "pores" of refined iron smaller, and the surface was covered with manual forging and hammer printing, forming a "honeycomb effect". If used properly, it can have the effect of "difficult to stick to the pot" and make cooking more handy. Zhangqiu iron pot is made of refined iron, with uniform thickness, no excessive oil smoke and easy cleaning. The original material of Zhangqiu iron pot is 2.5mm thick, and the pot body formed after forging is only 2.0 mm. Because of the high density of refined iron, 0. 1mm needs countless forging. Zhangqiu iron pot, the pot body is thin and uniform, and it will not burn to the bottom but will not burn to the pot wall. The temperature is balanced, and it will not produce too much oil smoke when cooking, and it is not easy to paste the pot. It is particularly easy to clean and use.