Official Grain Grading Guide

Wheat: Primary grade determination tables for Canada Western Special Purpose (CWSP) wheat

Wheat, Canada Western Special Purpose (CWSP)

Wheat, Canada Western Special Purpose (CWSP), standard of quality
Grading factorNo. 1 CWSPNo. 2 CWSPGrade, if No. 2 specs not met
Minimum test weight kg/hL (g/0.5 L)72 (350)65 (315)Wheat, Sample Canada Western (CW) Account Light Weight
VarietyAny variety of the class CWSP designated as such by order of the CommissionAny variety of the class CWSP designated as such by order of the Commission 
Wheat, Canada Western Special Purpose (CWSP), foreign material
Grading factorNo. 1 CWSPNo. 2 CWSPGrade, if No. 2 specs not met
Ergot %0.10.1Wheat, Sample CW Account Ergot
Excreta %0.030.03Wheat, Sample CW Account Excreta
Stones %0.030.062.5% or less - Rejected (grade) Account Stones Over 2.5% - Wheat, Sample Salvage
Total %
Foreign material
510See Mixed grain
Wheat, Canada Western Special Purpose (CWSP), grading factors
Grading factorNo. 1 CWSPNo. 2 CWSPGrade, if No. 2 specs not met
Heated %2.52.5Wheat, Sample CW Account Heated
Fusarium damage %1.04.010% or less - Wheat, Sample CW Account Fusarium Damage Over 10% - Wheat, Commercial Salvage
Artificial stain, no residue %2.02.0Wheat, Sample CW Account Stained Kernels
Fireburnt %2.02.0Wheat, Sample CW Account Fireburnt
Broken %1350Sample Broken Grain

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2026-08-01