Most “wasabi” served around the world—and often even in Japan—isn’t real wasabi. It’s usually a blend of horseradish, mustard, and green coloring designed to imitate the heat and color of the genuine plant. This guide explains what real wasabi is, why it’s so rare, how it differs from the common substitute, and how you can experience the authentic flavor for yourself. What Is Real Wasabi? Real wasabi, called hon-wasabi (Wasabia japonica), is a perennial plant native to Japan. It thrives in cool, pristine mountain streams where water runs constantly and cleanly. Because it requires stable temperatures (roughly 13–16°C year-round), ...
