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What is the difference between powdered and fresh wasabi? |
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Fresh wasabi, wasabi japonica, is a tuber--a root--related to
the horseradish, but much more refined in taste. It is found wild
on shallow shores of very cold mountain streams.
Though it is now extensively cultivated in Japan, Thailand, and
the Pacific Northwest of the US, wasabi must be raised in an environment
that duplicates its natural habitat. Therefore, farmed wasabi is
still fairly expensive, though cheaper in America than in Japan.
Thai wasabi is sold in Japan, while U.S. imports are restricted.
Powdered wasabi is not wasabi at all, but rather a mild horseradish,
colored green and seasoned with mustard for heat. Ironically, many
Japanese as well as people living abroad who have been exposed to
true, fresh wasabi prefer the powdered type, which is refreshed
by adding hot water and kneading.
Another option available in Japan, and on a limited basis in the
US, is frozen grated real wasabi, a product that I would rank right
in between fresh and powdered wasabi.
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