Originally Posted by Dawgluver
Most wasabi I've found is actually horseradish with green food coloring, maybe a tiny bit of actual wasabi, Vit.
The main ingredient in my Penzey's Wasabi is.....guess what?
You're very right. I've had real wasabi and have some in the fridge but it looks and tastes different.
"Wasabi is difficult to cultivate (see below), and that makes it quite expensive. Due to its high cost, a common substitute is a mixture of horseradish, mustard, starch and green food coloring. Outside of Japan, it is rare to find real wasabi plants. Often packages are labeled as wasabi, but the ingredients do not actually include wasabi plant. Although the taste is similar between wasabi and horseradish, they are easily distinguished. In Japan, horseradish is referred to as seiyō wasabi (西洋わさび?, "western wasabi"). In the United States, true wasabi is generally found only at specialty grocers and high-end restaurants."