I'm not sure what it tastes like alone. You could make your own absinth, though. Just drop the wormwood into a bottle of jaegermeister and let it stay there. Theoretically, the thujone content will increase over time. Personally, I never noticed any effects (other than drunkenness) from absinth.
The best way to store malt is to combine it with water, hops and yeast... -Charlie Papazian