Ossetra (Oscietra or Asetra) caviar derives from the Ossetra sturgeon (Acipenser persicus or Acipenser gueldenstaedtii), weighing 50-400 pounds and living up to 50 years. The colour of sturgeon caviar varies from warm brown to green-gray, dark blue to black and even yellow. Sturgeon caviar has a nutty flavour and is highly prized as an elite caviar.
The Ossetra sturgeon is smaller than the Beluga species (Huso huso). It has firmer texture compared to more delicate Beluga caviar.
Many consider it the golden child of the Sturgeon family. Ossetra caviar is certainly the most popular and highly demanded variety of Caspian caviar. Usually, its size and price range somewhere between those of Beluga and Sevruga caviar. The world's finest Ossetra caviar is found in the Caspian Sea. Malossol (lightly salted) Ossetra is the finest one and the most expensive.
Experts say that the variations in taste occur because the Ossetra is a bottom feeder. Thus, its caviar takes on the taste of whichever the fish feeds on. Because of the eggs appearing in different colours, Ossetra caviar stands out as a famous elite caviar.
It has a remarkably pure, crisp, "nutty" flavour with a colour that varies from golden yellow to dark brown. Many people find it to be the most delicious of all sturgeon caviar.