Unopened cream can be stored for one year at -18℃.It can last for two weeks in a refrigerator between 2℃ and 7℃.Un whipped cream should not be repeatedly thawed and frozen during storage.Otherwise, it may affect the quality of the cream.Whipped cream can be stored in a refrigerator between 2℃ and 7℃ for three days.Softened butter can be stored in a refrigerator at 2℃-7℃ for three days.