Sakhalin and Kamchatka red caviar is not one product, but several. Any local will readily tell the difference between pink salmon caviar and chinook salmon, sockeye salmon or coho salmon varieties. Any local will also have a friend selling the best product in the region. However, despite popular belief, homemade salmon caviar is not marketed in the street, while local residents are just fine with the factory-produced variety. Whether on shore or out on a ship at sea, the location of the production facility doesn’t matter as long as just two conservants are used to keep caviar fresh: salt and freezing temperatures.