ARCHIVED - Wheat, Canada Western Red Winter (CWRW)

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These tables show the grade schedule for Canada Western Red Winter wheat. It includes grades, grading factors for each grade, and tolerances within each factor.

Grade schedule for Canada Western Red Winter wheat - Part 1
Grade name Standard of quality
Minimum test weight kg/hl (g/0.5 L) Variety Minimum protein % Degree of soundness
No. 1 CWRW 79 (386) Any variety of the class CWRW designated as such by order of the Commission 9 Reasonably well matured, reasonably free from damaged kernels
No. 2 CWRW 76.5 (373) Any variety of the class CWRW designated as such by order of the Commission No minimum May be frost-damaged, immature or weather-damaged, moderately free from severely damaged kernels
CW Feed 65 (315) Any class or variety of wheat excluding amber durum and General Purpose No minimum Reasonably sweet, excluded from higher grades on account of light weight or damaged kernels
Grade, if specs for CW Feed not met Wheat, Sample CW Account Light Weight      
Grade schedule for Canada Western Red Winter wheat - Part 2
Grade name Foreign material
Ergot % Excreta % Matter other than cereal grains % Sclerotinia % Stones % Total %
No. 1 CWRW 0.01 0.010 0.2 0.01 0.03 0.4
No. 2 CWRW 0.04 0.015 0.5 0.04 0.06 0.7
CW Feed 0.1 0.030 1 0.1 0.1 10
Grade, if specs for CW Feed not met Wheat, Sample CW Account Ergot Wheat, Sample CW Account Excreta Wheat, Sample CW Account Admixture Wheat, Sample CW Account Admixture 2.5% or less-Rejected (grade) Account Stones Over 2.5%- Wheat, Sample Salvage See Mixed grain
Grade schedule for Canada Western Red Winter wheat - Part 3
Grade name Wheats of other classes or varieties ( * ) Artificial stain, no residue % Natural Stain % Blackpoint %
Contrasting classes % Total %
No. 1 CWRW 1.0 3 Nil 0.5 10
No. 2 CWRW 2 5 7K 5 35
CW Feed No limit-but not more than 10% amber durum 2 No limit No limit
Grade, if specs for CW Feed not met Over 10% amber durum - Wheat, Sample CW Account Admixture Wheat, Sample CW Account Stained Kernels    
Grade schedule for Canada Western Red Winter wheat - Part 4
Grade name Maximum damage limits
Fireburnt % Fusarium damage % Sawfly, midge % Heated
Binburnt severely mildewed rotted, mouldy % Total %
No. 1 CWRW Nil 1.0 1.0 1 kernel per 1000 g 0.05
No. 2 CWRW Nil 2.0 5 2 kernels per 1000 g 0.1
CW Feed 2 5 No limit 2.5 2.5
Grade, if specs for CW Feed not met Wheat, Sample CW Account Fireburnt Wheat, Sample CW Account Fusarium Damage Over 10% - Wheat, Commercial Salvage   Wheat, Sample CW Account Heated
Grade schedule for Canada Western Red Winter wheat - Part 5
Grade name Maximum damage limits
Smudge Sprouted Total damage %
Penetrated smudge % Total smudge % Severely sprouted % Total %
No. 1 CWRW 3K 30K 0.10 0.5 2
No. 2 CWRW 1.0 3 0.30 2.5 5
CW Feed No limit No limit No limit No limit N/A
Grade, if specs for CW Feed not met        
Grade schedule for Canada Western Red Winter wheat - Part 6
Grade name Shrunken and broken ( ** )
Shrunken % Broken % Total %
No. 1 CWRW 3 3 3
No. 2 CWRW 3 5 5
CW Feed No limit 13 No limit within broken tolerances
Grade, if specs for CW Feed not met   Sample Broken Grain  

( * ) See working tolerance for “Wheats of other classes or varieties”.

( ** ) See truncation rule for “Shrunken and broken”.

K - Number of kernel-size pieces in 500g.