Why rush to eat your caviar before it spoils? Caviar is a delicacy that should be savored, not devoured. Be it Sturgeon caviar, Beluga caviar or Osetra caviar, semi-preserved caviar lasts up to 6 months, if refrigerated properly. Instead of eating caviar on its time schedule, now you can enjoy caviar on your own time schedule. The only trade off is that the semi-preserved caviars are a bit more salty than their Malossol versions.