J.B. Spices started the production of spice powder & spice mixes in 1986. J.B. Spices offers Mustard is a versatile seed; it is used in umpteen numbers of ways. Black Mustard [Brassica nigra] is a round hard seed, varying in color from dark brown to black, smaller and much more pungent than the white. The Mustard seeds have a rich and nutty flavor that adds taste to the preparations. They are nutritious and are available at the reasonable prices. J.B. Spices is ISO 9001:2000 & HACCP certified.