The best Osetra caviar is said by many caviar experts to be from U.S. R.A.S. (recirculating aquaculture system) farmed Russian Sturgeon (Acipenser Gueldenstaedtii). This is the only species responsible for Osetra caviar (Osietra, Ossetra, Asetra). Although the U.S. imports Osetra-labelled caviar from China, chances are that caviar is made from hybrid fish, and is not true Osetra. Imported caviars are known to contain borax, a chemical that the FDA has deemed as illegal in the U.S. That said, imported caviars may taste just fine and look pretty, but keep in mind that unlike many caviar exporting countries, the U.S. has strict environmental, health and safety regulations. True Osetra caviar has a buttery, nutty flavor and firm texture; bursting with character. Roe size can vary, and larger roe does not mean better flavor! If you support sustainable seafood, but also want exceptional, extremely clean caviar, the best Osetra caviar you can get comes from right here in the U.S.A.