The mustard paste refers to a thick paste prepared by mixing mustard, vinegar, chillies and salt. This is a thick yellowish-brown paste with a sharp taste made from the ground seeds of a mustard plant (white or yellow mustard. Grinding the mustart seeds gives dried mustard powder and adding water and spices during grinding gives mustard paste.A strong mustard paste can cause the eyes to water, sting the palate and inflame the nasal passages. It can also cause allergic reaction. One of the factors that determine the strength of a prepared mustard paste is the temperature of the water, vinegar, or other liquid mixed with the ground seeds: hotter liquids are more hostile to the strength-producing compounds. Thus, hot mustard is made with cold water, while using hot water results in milder mustard. This pungent paste is great for the bold taster. This paste can be served as salad dressing or with fish and chicken.