2. Generally, you can put it for half a month at most, wrap the unfinished Swiss rolls in plastic film, and then store them in the refrigerator. It can be kept for half a month. When you want to eat, take it out and thaw it 20 minutes in advance (don't heat it in the microwave oven, or it will go bad). After thawing, the taste is also soft and waxy. If the taste of ice cream is acceptable, thaw it for about 10 minutes.