Official Grain Grading Guide

Wheat: Export 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 export grade determination table for CWAD, 61 x 91 cm (24 x 36 in) (PDF, 210 KB)

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

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
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)	80 (392)	79 (387)	78 (382)	75 (367)	73 (357)
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
Table 1 Notes Footnote 1 See Frost (FR) and Mildew (MIL) for applicable standard Return to footnote 1 referrer

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
Ergot %	0.02	0.02	0.04	0.04	0.10
Excreta %	0.01	0.01	0.01	0.01	0.03
Matter other than cereal grains %	0.2	0.3	0.5	0.5	1.0
Other cereal grains %	0.5	0.8	1.0	3.0	5.0
Sclerotinia %	0.02	0.02	0.04	0.04	0.10
Stones %	0.03	0.03	0.06	0.06	0.10
Total % Mineral matter including stones	0.06	0.10	0.10	0.10	0.25
Total % Foreign material^{Footnote 2}	0.5	0.8	1.0	3.0	5.0
Table 2 Notes Footnote 2 Total foreign material (TFM) includes all components in the commercially clean determination table except broken wheat passing through the No.5 buckwheat sieve Return to footnote 2 referrer

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
Artificial stain, no residue %	0.0	0.1	0.1	0.1	2.0
Binburnt, severely mildewed, rotted, mouldy %	0.01	0.01	0.02	0.50	5.00
Total % Heated, binburnt, severely mildewed, rotted, mouldy	0.1	0.1	0.4	1.5	5.0
Other classes %	2.0	2.5	3.5	10.0	15.0
Total % Wheats of other classes or varieties^{Footnote 3}	3	5	7	15	No limit
Degermed %	4	7	10	13	No limit
Fireburnt %	0.0	0.0	0.0	0.0	2.0
Fusarium damage %	0.5	0.5	2.0	2.0	4.0
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	3
Broken %	6	8	10	11	13
Total % Shrunken and broken	7	9	11	12	15
Severely sprouted %	0.2	0.4	3.0	12.0	No limit
Total % Sprouted	1	2	7	12	No limit
Table 2 Notes Footnote 3 See working tolerance for Wheats of Other Classes or Varieties (WOOC) Return to footnote 3 referrer

2026-08-01