Most “wasabi” served around the world (and often even in Japan) is not real wasabi. What many people recognize as wasabi is usually a horseradish-based substitute made to imitate the heat and color of Japan’s native plant. Real wasabi (hon-wasabi) is rare, expensive, and highly perishable—so rare that many visitors to Japan never taste it freshly grated. This guide explains what real wasabi is, why substitutes dominate, how the flavors differ, and how to experience authentic hon-wasabi for yourself. What Is Real Wasabi? Real wasabi, called hon-wasabi (Wasabia japonica), is a perennial plant native to Japan. It thrives in ...