Basics

There are four varieties of mustard seeds that I can think of. Basic colors and sizes such as White Mustard, Asian Mustard, Brown Mustard and Black Mustard. The prepared mustard bought in stores is generally powdered and mixed with water, vinegar, wine, or white grape juice. The seeds themselves are used to season all kinds of foods and in the past have been used for medicinal purposes.

Producers

Mustard Seeds are cultivated in temperate climates all over the world. Black and Brown mustard is native to India and Asia where it is primarily cultivated to this day. White mustard, which is more of a tan color, is grown throughout Europe and America.

Aromatics and Flavors

There is no smell or aroma from mustard seeds whatsoever. The flavor on the other hand is highly pungent. The taste goes from slightly sweet to a nice pungent heat.

Culinary Uses

Mustard Seeds not only make the infamous table condiment, the ground powder can be used in several spice blends such as BBQ spice. Mustard Seeds prepared and dry powder also act as an emulsifier for vinaigrettes. A very useful spice with great flavor all around.