This Buttercream Icing by CK Products is fluffy and ready to use. It's great for icing and decorating. Just open and start decorating. For best results, mix the icing on low for a few minutes before use. This buttercream icing can also be used straight from the tub. Shelf LIfe is 15- 18 months if kept in cool environment. Certified Kosher by CRC of Chicago.