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Caviar Storage Caviar Storage Some caviar can be stored frozen for up to a year, and some others really should never be frozen at all, but should only be kept refrigerated. Caviar should be consumed on the same day that the tin is opened.
How long depends on several factors, such as your home's temperature, whether foods are soft or hard frozen and how full the freezer is. It's not unusual for freezer foods to stay frozen for up to three days in a chest freezer that is three-quarters full.