Wasabi is a variety of green horseradish and wasabi powder provides heat, but has more of an herbal overtone and dissipates more quickly. You can enjoy a wonderful flavor and pungency of wasabi for sushi, sashimi, noodles, dim sum, and other Chinese dishes. Made from all natural ingredients with no preservatives. To use: Add 3/5 cup of cold water to 1 cup of Wasabi powder and mix well. After the contents have been completely mixed, place in a container and seal to preserve flavor and hotness. Store in a refrigerator and use as soon as possible.