Domestic machines range from 4000 yuan to 1000 yuan, and American brand machines like DQ range from more than 40 thousand to about 200 thousand. Do I have to stir the ice cream myself before putting it into the machine? That depends on whether you make hard ice or soft ice. Hard ice is also called Italian handmade ice cream. Generally, the raw materials should be mixed according to the formula and put into the machine for stirring. After the production is completed, it will be put directly into the freezer. The shelf life is usually 7 days. Soft ice, also called sundae, can be made directly from milk slurry or mixed with powder and milk. If it is sold out, the raw materials should be typed out at night and put in the freezer. Shelf life 1-2 days.