Corn grits are a kind of early, middle and late food in northern rural areas, which is pronounced as corn grits (shēn) and also called bonzi grits. Corn grits can be made into many kinds of food. In the era of coarse grains, it is the staple food of people and is still one of the foods to improve people's taste. There are other impurities in it after processing, so it should be washed with clear water to remove impurities before eating.