Mustard is well a wonderful spice that can be used for so much. It grows naturally the Mediterranean. Mustard seeds are harmless in their dried condition, but when you crush the seeds release essential oils and mix the powder into the water emitted second irritants. Mustard is supposed to have an ability to cure scurvy. Therefore gave no Dutch ship on the seas without mustard powder in the shipment. Mustard was also used in bath and patch. In Asia, oil derived used as fuel for lanterns and as a flavoring in many dishes. Mustard can really give spice to life.