Naembi, also called jaenggabi or jaenggaebi, is a utensil used to boil or steam food. In the Three Kingdom Era and the Goryeo Dynasty, it was called chodu. It is often placed directly on a stove hearth to cook soups or to braise and fry foods. Pots are usually shallower than cauldrons, their handles are fixed and the bottom is flat. Compared to cauldrons, these pots are easier to carry and used to cook smaller portions of food. Pots were initially made of bronze or iron in the Three Kingdom Era. In the Joseon Dynasty, brass pots were occasionally used, while stew pots with a hole at the center also came into use. Later, pots were made using more varied materials such as ash-glazed pottery, aluminum, stainless steel, and enamel.