Baking is expensive. There is a saying circulating in the baking circle, "once into the baking deep like the sea, from now on the wallet is a passer-by" into the baking is to fall into a deep pit, baking utensils are more expensive and need more raw materials, baking books, etc., so the meaning of this saying is that baking is very costly. Baking, also known as baking, roasting, refers to the process of dry heat under the ignition point of the material through the dry heat to make the material dehydrated and dry and hard.