6 layers of thick kettle material thick gallbladder. According to the query Anjuke, Nepal's new ball kettle rice cooker, with 6 layers of thick kettle material thick gallbladder, which has a layer of poly energy fine iron layer, basically can circumvent these two weaknesses. The inner liner heat transfer is fast, the rice is more permeable to the core, with the kind of large iron pot used in the old family when I was a child is a reason to cook the rice to the wood fire fragrance.