Romans were probably the first to experiment with the preparation of mustard as condiment. They have faint spicy smell. It is mainly use as a condiment and pickling spice. They have rich nutty flavor that adds taste to the preparations. This is a very minor spice consumed in some very specific food preparations. Mustard seeds not only stimulate the appetite, but it also has digestive, laxative, antiseptic and circulative stimulant properties. The pungency of mustard grows when water is added to it. Mustard powder acts as emulsifier in the preparation of mayonnaise and salad dressings.