Back before there were refrigerators, wasabi was indispensable for Nigirizushi, eliminating the fishy smell and also providing bactericidal effects to prevent the fish from spoiling. Wasabi is originally from Japan and it has been used in Edomae sushi from the very beginning. Even with all the advancements in technology for storing sushi toppings, wasabi is still used today to remove the fishy smell and prevent spoiling. However, nowadays the flavor and aroma of wasabi and the way it brings out the flavor of the sushi topping is the main focus.
When wasabi is grated and exposed to the air, its unique heat is made enhanced by enzymes. Using a coarse grater gives the wasabi a rough, fibrous texture that spreads the spicy flavor through to the back of the throat. On the other hand, if Sharkskin wasabi is grated finely, it foams up with tiny bubbles and makes a creamy taste. The type of wasabi depends on the personality of the shop.
However, the powdered wasabi and wasabi paste you find at kaiten-zushi (conveyor belt sushi) is primarily made from horseradish and is colored and scented with additives. It isn’t dried wasabi and it is significantly cheaper.
We hope this information will be helpful.
Revision date: June 6, 2017
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