Organic Mustard Seed Powder 3 oz. Mustard (Sinapsis alba)
Mustard Seed Yellow Powder Organic
Mustard seeds are small, about 1 mm in diameter. They may be colored from yellowish white to black. They are important spices in many regional cuisines.
The Romans most likely developed the prepared mustards we know today. They mixed unfermented grape juice, known as 'must', with ground seeds (called sinapis) to form mustum ardens, or 'burning must'.