Have you ever eaten wasabi? If you answered "yes" to that question, you are likely mistaken. Most sushi eaters-even in Japan-are actually being served a mixture of ground horseradish and green food coloring splashed with a hint of Chinese mustard. Worldwide, experts believe that this imposter combination masquerades as wasabi about 99% of the time.
The producer gave us permission to repost this. I’ve seen many wasabi videos and this one is quite powerful. Both the article content and video were masterfully done. We are the largest US wasabi producer/grower. Though we, nor any North American grower replicates the in-stream Japanese growing method, we are enthusiastically introducing this wonderful plant to the US.
Reference: https://www.theatlantic.com/video/index/585172/wasabi-fake/