When it comes to caviar, there is no better or worse - it's all a matter of personal preference. But some caviars have a more robust "taste of the sea," such as Siberian or Shassetra Caviars. Others have a milder, nuttier flavor, especially Ossetra and Transmontanus.
What's the difference between grades?
In general, a higher grade of caviar means a more mature caviar. First and foremost is taste - a higher grade will feature a flavor with more depth and strength. It will also have a firmer texture and larger eggs for a bolder mouthfeel. Higher grades of caviar also typically have a lighter color.