I, raw materials and processing methods are different.

1, cooked mustard is yellow mustard. Made from the seeds of white mustard and processed, usually with white vinegar to open consumption, and very fragrant.

2. Raw mustard, or green mustard, is made from the roots, stems and leaves of wasabi and has a very strong flavor.

2. Different uses.

1, cooked mustard is usually eaten with red meat such as pork and beef to relieve fatigue.

2, raw mustard is usually consumed with fish and sashimi to enhance the flavor.

Three, the taste is different.

1, cooked wasabi taste soft, with a little bitterness, aroma.

2, raw mustard taste more punchy, no bitter flavor, but spicy.

Baidu Encyclopedia - Yellow Wasabi

Baidu Encyclopedia - Green Wasabi