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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 do whole blueberries last in the freezer? Properly stored, they will maintain best quality for about 10 to 12 months, but will remain safe beyond that time. The freezer time shown is for best quality only - blueberries that have been kept constantly frozen at 0â will keep safe indefinitely.