At present, there are more than 20 kinds of sturgeon in the world. Only the eggs of three kinds of sturgeons, namely, ACIPENSER ACIPENSER, setra and Sevruga, which are produced in the Caspian Sea area south of Russia and north of Iran, can be used to make the precious caviar we are familiar with. The highest-ranking beluga whale produces less than 100 fish a year, and only the eggs laid by mature beluga whales over 60 years old are qualified to make beluga caviar; Followed by setra caviar made from eggs laid by setra fish over 40 years old; Then there is Sevruga caviar made of eggs laid by Sevruga fish over 20 years old. The price of 30 grams of superior beluga caviar is 1200 RMB.
The higher the grade, the higher the fish fat content in caviar, but the lower the salt content. In this way, the taste is stronger and the flavor is clearer. The more advanced caviar is, the fatter and rounder the particles are, the more transparent and clear the color is, and even the golden light shines slightly.
Caviar must not touch metal utensils, because metal will seriously destroy the aroma of caviar. Generally, it is eaten in a crystal plate with a shell spoon.