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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.
Foods stay frozen longer if the freezer remains unopened, is full, is in a cool place and is well insulated. Usually food in a loaded freezer will stay frozen for two to four days, depending on its size. A half-filled freezer will keep food frozen only about 24 hours. Cover the freezer with blankets, keeping them away from the compressor, to help hold the cold.