You can open a snack bar and want to learn snacks. First of all, you should know about snacks, and you should be able to make snacks, which is the most basic. Then opening a store includes a series of work such as site selection, decoration, material selection and operation. You can open a shop directly if you have experience. If not, you need systematic study and employment guidance. It is not difficult to learn snacks. Generally, you can master many categories in a month or so. Going to the snack bar involves a lot of service work, and there is little opportunity to learn the core technology in time. If you want to learn snacks from scratch, you'd better choose a regular school and make a comprehensive comparison, including tuition fees, courses and teaching quality. There are many snack bars now, so the future in this area is still very good.