Once your package arrives, the cresce should be stored in the refrigerator or in a cool, dry place, away from heat sources and direct light. When stored this way, they have a shelf life of 21 days.
If you wish to enjoy them over a longer period of time, the cresce can be frozen for up to 120 days, while maintaining their flavor and texture. This way, you can always have them ready and take them out whenever you prefer.