Sushi Sonic Real Wasabi is the genuine article- real wasabi (Wasabia japonica), the rare, hard to grow, hot green rhizome so prized in the East. Most sushi bars do not serve this authentic condiment, but rather a mixture of horseradish, mustard, and a little green food coloring! That is because real wasabi is considered a most difficult plant to grow commercially and has been mostly unavailable outside of Asia until recently. Sushi Sonic Real Wasabi is freeze-dried to preserve flavor, reconstitutes quickly with a little water, and blooms in the mouth with a pungent, slightly sweet, vegetal flavor instead of the harsh, biting sting of the horseradish-mustard mixture.