Official Grain Grading Guide

Wheat: Primary grade determination tables for Canada Western Amber Durum (CWAD) wheat

Chapter 4. Wheat (PDF, 2 MB)

Wheat, Canada Western Amber Durum (CWAD)

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Download a poster version of the primary grade determination table for CWAD, 61 x 91 cm (24 x 36 in) (PDF, 212 KB)

Wheat, Canada Western Amber Durum (CWAD), standard of quality
Grading factor	No. 1 CWAD	No. 2 CWAD	No. 3 CWAD	No. 4 CWAD	No. 5 CWAD	Grade, if No. 5 specs not met
Degree of soundness^{Footnote 1}	Reasonably well matured, reasonably free from damaged kernels	Reasonably well matured, reasonably free from severely damaged kernels	Fairly well matured, may be moderately weather-damaged or frost-damaged, reasonably free from severely damaged kernels	May be frost-damaged, immature or weather-damaged, moderately free from severely damaged kernels	Reasonably sweet, excluded from higher grades on account of light weight or damaged kernels
Minimum test weight kg/hL (g/0.5 L)	79 (387)	77 (377)	74 (362)	71 (347)	65 (318)	Wheat, Sample CW Account Light Weight
Minimum hard vitreous kernels %	80	60	40	No minimum	No minimum
Minimum protein %	9.5	No minimum	No minimum	No minimum	No minimum
Variety	Any variety of the class CWAD designated as such by order of the Commission	Any variety of the class CWAD designated as such by order of the Commission	Any variety of the class CWAD designated as such by order of the Commission	Any variety of the class CWAD designated as such by order of the Commission	Any variety of amber durum wheat

Note: Samples of CWAD will be graded no lower than No. 4 CWAD on account of mildew

Footnote 1

See Frost (FR) and Mildew (MIL) for applicable standard.

Wheat, Canada Western Amber Durum (CWAD), foreign material
Grading factor	No. 1 CWAD	No. 2 CWAD	No. 3 CWAD	No. 4 CWAD	No. 5 CWAD	Grade, if No. 5 specs not met
Ergot %	0.02	0.02	0.04	0.04	0.10	Wheat, Sample CW Account Ergot
Excreta %	0.01	0.01	0.01	0.01	0.03	Wheat, Sample CW Account Excreta
Matter other than cereal grains %	0.2	0.3	0.5	0.5	1.0	Wheat, Sample CW Account Admixture
Sclerotinia %	0.02	0.02	0.04	0.04	0.10	Wheat, Sample CW Account Admixture
Stones %	0.03	0.03	0.06	0.06	0.10	2.5% or less - Wheat, Rejected (grade), Account Stones Over 2.5% - Wheat, Sample Salvage
Total % Foreign material	0.5	1.2	1.5	3.0	10.0	See Mixed grain

Wheat, Canada Western Amber Durum (CWAD), grading factors
Grading factor	No. 1 CWAD	No. 2 CWAD	No. 3 CWAD	No. 4 CWAD	No. 5 CWAD	Grade, if No. 5 specs not met
Artificial stain, no residue %	0.0	0.1	0.1	0.1	2.0	Wheat, Sample CW Account Stained Kernels
Binburnt, severely mildewed, rotted, mouldy %	0.01	0.01	0.02	0.50	5.00	Wheat, Sample CW Account Heated
Total % Heated, binburnt, severely mildewed, rotted, mouldy	0.1	0.1	0.4	1.5	5.0	Wheat, Sample CW Account Heated
Other classes %	2.0	3.0	4.3	10.0	49.0	Wheat, Sample CW Account Admixture
Total % Wheats of other classes or varieties	4	8	11	49	No limit	Wheat, Sample CW Account Admixture
Degermed %	4	7	10	13	No limit
Fireburnt %	0.0	0.0	0.0	0.0	2.0	Wheat, Sample CW Account Fireburnt
Fusarium damage %	0.5	0.5	2.0	2.0	4.0	Wheat, Sample CW Account Fusarium Damage Over 10%- Wheat, Commercial Salvage
Grass green %	0.8	2.0	4.0	10.0	No limit
Insect damage %	1	3	5	8	No limit
Natural stain %	1	2	5	8	No limit
Pink %	3	6	10	No limit	No limit
Sawfly, midge %	2	8	15	40	No limit
Severe midge %	0.1	0.3	0.8	2.0	No limit
Penetrated smudge %	0.1	0.3	0.8	2.0	No limit
Total % Severe midge and penetrated smudge	0.1	0.3	0.8	2.0	No limit
Total % Smudge	0.5	1.0	3.0	Consider overall appearance	No limit
Total % Smudge and blackpoint	5	10	20	Consider overall appearance	No limit
Shrunken %	3	3	3	3	No limit
Broken %	6	8	10	11	13	Sample Broken Grain
Total % Shrunken and broken	7	9	11	12	No limit within broken tolerances
Severely sprouted %	0.2	0.4	3.0	12.0	No limit
Total % Sprouted	1	2	7	12	No limit

2026-08-01