These two are actually very good. The investment is not big, and the store is not too big. However, Iced Powder Ciba is more suitable for cooking in summer, and Kibo can cook it all year round. Moreover, these two kinds of snacks can be cooked almost anywhere, and they don't need an open flame and don't produce lampblack (many shopping malls don't allow open flames and lampblack). Personally, I suggest you go to a place that specializes in training this snack to learn the technology yourself. If you join, there are more ingredients to sell. So think about it.