- Rich in vitamin C, wasabi stimulates the production of saliva and aids digestion. It has powerful antibacterial properties and is mildly antiseptic.
Wasabi : Wasabia japonica, Cochlearia wasabi, or Eutrema japonica) is a member of the Brassicaceae family, which includes cabbages, horseradish and mustard. Known as "Japanese horseradish", its root is used as a spice and has an extremely strong flavor. Its hotness is more akin to that of a hot mustard rather than the capsaicin in a chili pepper, producing vapors that stimulate the nasal passages more than the tongue. The plant grows naturally along stream beds in mountain river valleys in Japan.
Wasabi is generally sold either in the form of a root which must be very finely grated before use, or as a ready-to-use paste (either real wasabi or a mixture of horseradish, mustard and food coloring), usually in tubes approximately the size and shape of travel toothpaste tubes. The paste form is usually just horseradish, since fresh wasabi is extremely perishable and more expensive than horseradish. Once the paste is prepared it should remain covered until served to protect the flavor from evaporation. For this reason, sushi chefs usually put the wasabi between the fish and the rice.
Wasabi on metal oroshigane