Domestic mustard seed - Chapter 12 | Official Grain Grading Guide
Domestic mustard seed is classed as yellow, brown or oriental, or mixed. The class forms part of the grade name; for example, Domestic Mustard Seed, Sample Canada Yellow Account Heated.
|Yellow||Light creamy-yellow to yellow Occasional seed is light or yellowish brown||2 to 3 mm in diameter||Spherical or oval||Textured, similar to an orange peel, hilum area–small white spot on a deep yellow to light tan circular area|
|Brown||Reddish-brown to dark-brown||2 mm or less in diameter||Spherical or oval||Predominant netting, ridges are thicker than oriental mustard, hilum area – white on a black or darker brown circular area|
|Oriental||Predominantly yellow to dark-yellow, with some seeds ranging from light brown to brown||1.2 to 2.0 mm in width, 1.6 to 3.0 in length||Oval||Predominant netting, not as predominant as brown mustard, ridges are fine, hilum area – white on a darker yellow to lighter brown circular area|
|Mixed||Yellow and brown mustard seed containing less than 90.0% of one class. See also Domestic mustard seed, oriental: Other classes|
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