When did the cold drink bar in the supermarket start to freeze?

The off-season of soda fountain is winter and spring. Since autumn, you can see cold drinks shops, and the passenger flow has dropped significantly, but there will still be a certain amount of passenger flow. Although there are not many people, the weather will be warmer. But in winter and spring, such solar terms are very cold, and human eating habits will not eat cold drinks. So this is the off-season.