The hot pot developed gradually, adapting to historical introduction of vessels, social demands and ingredients, just like China’s dietary development. For instance, it was impossible to have spicy hot pot before huajiao (pricklyash peel) and chili peppers were introduced to China. During the Three Kingdoms period, Emperor Wendi of Wei noted the “Five-Section Vessel” which could be used to cook different foods at the same time. This vessel is similar to today’s “2 in 1 Hot Pot.” In the Southern and Northern Dynasties, bronze was the most common vessel, which gradually evolved into today’s hot pot.