1, caviar is mainly made from fish eggs, this process is the process of processing, the processing skills and knowledge have strict requirements, the process is very complex, to be completed within 15 minutes, but also after more than ten procedures, because if the processing time is too long fish eggs will not be fresh, and not suitable for making caviar. First of all, when taking the eggs, the fish must not be killed, but knocked out, if it is killed, the eggs will be rotted and will not be fresh. After taking out the fish eggs, they have to be sifted, cleaned, dried, and given to professional masters to taste, see and touch, and graded according to different sizes, colors and smells.

2, caviar is expensive on the one hand, the production process is very complex, very troublesome. In addition to this, caviar is a very high-grade ingredients. Black caviar is generally sturgeon eggs, and sturgeon itself is a freshwater fish, the main in the sea, caviar is very expensive, but also because the sturgeon its own egg production is relatively small, generally only sturgeon eggs can be made into caviar, and the world a *** only three sturgeon eggs can be made, which increases the expensive price of caviar. And each case of caviar is round and full, looking like a pearl.

3, and each country's demand for caviar increased, which led to the sturgeon's population is becoming less and less. There are some countries in order to protect sturgeon, began to restrict people to fish wild fish. Therefore, the price of caviar is more and more expensive, and a sturgeon from birth to produce roe takes a long time.