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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.
Shelf Life: 4 to 6 months in the freezer if stored in sealed containers or if tightly wrapped. Rye Flour. Shelf Life: whole-grain rye flour should be stored in the refrigerator, tightly wrapped or in an airtight container, where it will keep for several months. It will keep in the freezer for up to a half-year.