1~15 minutes.

Take the eight bowls of Tianshui as an example, and heat them for about 1~15 minutes. Tianshui Eight Bowls is a famous food in Tianshui, which belongs to intangible cultural heritage and is very famous.

There are several kinds of eight bowls classified by region, such as Anhui Eight Bowls, Hefei Eight Bowls, Zhengding Eight Bowls, etc. Zhengding Eight Bowls consist of four kinds of meat and four kinds of vegetables. Steamed four meats: steamed square meat, steamed crispy meat, steamed pork, steamed elbow, steamed meatballs and so on. Steamed four elements: steamed tofu, steamed kelp, steamed vermicelli and seasonal vegetables (such as steamed radish, steamed cabbage, steamed melon, etc.).