Raspberry Limoncello Polar Seltzer, opposites attract to create an amazing seltzer flavor-ite. Sweet and tart are always right. Polar Seltzer Premium Sparkling Water. Tiny Bubbles: The sparkle sets us apart. We've been perfecting the process of making our signature bubbles, with their long-lasting carbonation and crispness, since 1882. The bubbles are created by carefully dissolving Co2 into water at high pressure and freezing temperatures without exposing the flavors to oxygen. Other people may...