Buckwheat: Primary and export grade determination tables

On August 1, 2024, all primary and export grade determination tables in the Official Grain Grading Guide were updated to a vertical format. The previous versions will be available for reference until February 1, 2025.

Buckwheat, Canada (CAN)

Note: The size may be added to the grade name.

Buckwheat, Canada (CAN), standard of quality
Grading factor No. 1 Canada No. 2 Canada No. 3 Canada
Degree of soundness Cool and sweet Cool and sweet May have a ground or grassy odour, not musty or sour
Minimum test weight kg/hL (g/0.5 L) 58 (285) 55 (270) No minimum
Variety Any variety of buckwheat registered under the Seeds Act Any variety of buckwheat registered under the Seeds Act Any variety of buckwheat
Buckwheat, Canada (CAN), damage
Grading factor No. 1 Canada No. 2 Canada No. 3 Canada Grade, if No. 3 specs not met
Dehulled % 1 2 5 Buckwheat, Sample Canada (size) Account Damage
Immature % 1.5 1.5 5.0 Buckwheat, Sample Canada (size) Account Damage
Total %
Damage
4 8 20 Buckwheat, Sample Canada (size) Account Damage
Buckwheat, Canada (CAN), foreign material
Grading factor No. 1 Canada No. 2 Canada No. 3 Canada Grade, if No. 3 specs not met
Cereal grains % 1.0 2.5 5.0 Buckwheat, Sample Canada (size) Account Admixture
Ergot % 0.00 0.05 0.25 Buckwheat, Sample Canada (size) Account Ergot
Excreta % 0.01 0.01 0.01 Buckwheat, Sample Canada (size) Account Excreta
Matter other than cereal grains % 0.2 1.0 2.0 Buckwheat, Sample Canada (size) Account Admixture
Sclerotinia % 0.00 0.05 0.25 Buckwheat, Sample Canada (size) Account Admixture
Stones % 0.03 0.03 0.03 2.5% or less — West - Buckwheat, Rejected (grade) (size) Account Stones, or East - Buckwheat, Sample Canada (size) Account Stones Over 2.5%— Buckwheat, Sample Salvage
Total %
Foreign material
1 3 5 Buckwheat, Sample Canada (size) Account Admixture