Wasabi: Real vs Fake, and How to Use It
山葵 · Guide

Wasabi: Real vs Fake, and How to Use It

Unlock the secrets of wasabi: learn how to spot real from fake, and master its use in various Japanese dishes.

By the Yes Ichiban editors · Updated September 2026

Wasabi, the infamous green condiment that adds a pungent kick to sushi, sashimi, and other Japanese delicacies. But have you ever wondered what makes real wasabi so special? And how can you tell it apart from its fake counterpart?

What is Real Wasabi?

Real wasabi, also known as Japanese horseradish (Wasabia japonica), is a perennial plant native to Japan. Its root, which resembles a gnarly ginger root, contains a unique compound called allyl isothiocyanate that gives it its characteristic pungency and heat.

The Difference between Real and Fake Wasabi

So, what's the big deal about fake wasabi? Well, most commercial wasabi products are actually a mixture of mustard, green tea, and food coloring. These impostors may look similar to real wasabi, but they lack its distinct flavor and aroma.

How to Spot Real Wasabi

So, how can you tell if you're getting the genuine article? Here are some tips: