Ask experts for advice, how to package fresh jiaozi without sticking or pressing?

I don't know if you have noticed that some quick-frozen jiaozi in supermarkets generally have a thin plastic frame to separate jiaozi, which will definitely not stick. Of course, this involves an increase in costs. You can tell the customer in advance that you will provide the packing box for free, but this packing box can be used many times, and it is acceptable for the average customer to use it n times at a time. The most important thing is the quality of jiaozi. If customers are satisfied, repeat customers will become regular customers, and regular customers can have some small discounts. I think business will get better and better.