This splendid farm-raised caviar is derived from a cross-breed of Kaluga sturgeon (Huso Dauricus) and Amur (Acipenser Schrencki) sturgeon. The result is a creamy, buttery and nutty caviar with large, glossy grains ranging in color from light gray to black. Combine it with creme fraiche and blini for a classic gourmet eating experience. Kaluga Fusion Sturgeon Caviar, Black will last 4 to 6 weeks in the refrigerator, unopened. Eat within 3 days once opened. Buy caviar online from Gourmet Food Store to ensure your caviar arrives chilled, fresh, and in excellent condition.