The freshness of Klassic Knishes depends on how they are stored. Generally, if kept in a cool, dry place, they can maintain their best quality for several days. When stored in the refrigerator, they can last about a week. If customers prefer to extend the shelf life, freezing is an excellent option. Frozen knishes can remain in good condition for up to three months. It is important to package them properly before freezing to prevent freezer burn. When ready to enjoy, customers can reheat frozen knishes directly in the oven, toaster oven, or microwave to bring back their delightful flavor and texture. For specific storage recommendations or other inquiries, it may be helpful to refer to the current web page for detailed information.