You can consider compound drinking. There are several points to note, 1, and it must be clean and hygienic. People are most concerned about this matter, and it is best to use a transparent kitchen. 2. The investment is small and the cost is fast. After all, food is the most important thing for the people, and eating is still accepted by the public. 3. This is the smell. The taste must be distinctive, but don't make it special, because it is monotonous.