Caviar, it is known as' black gold 'and now 70% is produced in China!
The difficulty in raising sturgeon, high requirements for sauce making techniques, and endangered wild sturgeon are the reasons for the high price of caviar.
Source
科学辟谣 | 陈胜军 中国水产科学研究院南海所 研究员 | 徐钢春 中国水产科学研究院淡水渔业研究中心 研究员