Ground mustard flour and meal — the defatted or partially defatted powder milled from yellow, brown, or oriental mustard seed — and finished prepared mustard condiments share this heading despite representing very different stages of processing. The distinction between flour/meal (an industrial ingredient) and prepared mustard (a retail condiment) is commercially significant: flour and meal are primarily inputs for food manufacturing and spice blending, while prepared mustard competes in the condiment market where FDA labeling standards and allergen declarations apply. Canada is a dominant global supplier of mustard seed and derived products, given its position as the world's largest mustard seed producer, which gives USMCA-originating shipments a structural supply-chain advantage. Importers should confirm whether a product is defatted or full-fat, as fat content affects both classification and shelf-life documentation.

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