The taste of freshly washed eggs quickly changes into an almost sweet flavor with aromas of dried fruit (from hazelnut to walnut), butter and yeast, depending on the species of origin sturgeon.
Some caviar may also have flavors with stronger hints of sea, that recall seafood (especially mussels, clams, oysters and sea urchin), or the sweetness of shellfish (shrimp, crab, lobster, mantis shrimp), or seaweed, freshwater and spirulina algae.
Other times caviar can recall the flavor of fresh fish (whole fresh fish, raw fish or boiled fish). However, if caviar smells or tastes like preserved fish (stockfish, herring, feed, etc.) it is a major defect and this is a sign of poor preservation.