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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.
Other types of caviar can be more or less salted. Although things have changed over the years, one thing still remains true: the salt. A special kind of salt was - and is- used to prepare caviar, a chlorine-free salt from the Russian Astrakhan Steppe, stored for seven years to assure the least chlorine content.