Prepared genuine wasabi in a tube. Grated Sushi Wasabi - Ready to use (in tube). Wasabi is a must have for sushi and sashimi. Unlike other brands, Grated Sushi Wasabi is made 100% from Japanese wasabi. Wasabi is grown in a flowing stream of mineral rich mountain spring water in the highlands of Japan. Wasabi is grated and tubed immediately to keep its freshness. It contains no horseradish, powdered horseradish, preservatives or MSG added. Product of Japan.