Official Grain Grading Guide

Wheat: Export grade determination tables for Canada Western Red Winter (CWRW) wheat

Chapter 4. Wheat (PDF, 2 MB)

Wheat, Canada Western Red Winter (CWRW)

Print format
Download a poster version of the export grade determination table for CWRW, 61 x 91 cm (24 x 36 in) (PDF, 206 KB)

Samples of CWRW will be graded no lower than No. 3 CWRW on account of mildew

Wheat, Canada Western Red Winter (CWRW), standard of quality
Grading factor	No. 1 CWRW	No. 2 CWRW	No. 3 CWRW	CW Feed
Degree of soundness^{Footnote 1}	Reasonably well matured, reasonably free from damaged kernels	Fairly well matured, may be moderately bleached or frost-damaged, reasonable free from severely damaged kernels	May be frost-damaged, immature or weather-damaged, moderately free from severely damaged kernels	Reasonably sweet, excluded from other grades of wheat on account of damaged kernels
Minimum test weight kg/hL (g/0.5 L)	79 (386)	76 (370)	74 (361)	73 (355)
Minimum protein %	11.0	11.0	No minimum	No minimum
Variety	Any variety of the class CWRW designated as such by order of the Commission	Any variety of the class CWRW designated as such by order of the Commission	Any variety of the class CWRW designated as such by order of the Commission	Any class or variety of wheat excluding amber durum and any variety of the class CWSP
Table 1 Notes Footnote 1 See Mildew (MIL) for applicable standard Return to footnote 1 referrer

Wheat, Canada Western Red Winter (CWRW), foreign material
Grading factor	No. 1 CWRW	No. 2 CWRW	No. 3 CWRW	CW Feed
Ergot %	0.04	0.04	0.04	0.10
Excreta %	0.01	0.01	0.01	0.03
Matter other than cereal grains %	0.2	0.3	0.5	1.0
Other cereal grains %	0.4	0.7	1.3	5.0
Sclerotinia %	0.04	0.04	0.04	0.10
Stones %	0.03	0.06	0.06	0.10
Total % Mineral matter including stones	0.06	0.10	0.10	0.25
Total % Foreign material^{Footnote 2}	0.4	0.7	1.3	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 Red Winter (CWRW), grading factors
Grading factor	No. 1 CWRW	No. 2 CWRW	No. 3 CWRW	CW Feed
Contrasting classes %	1	2	3	10%, either alone or in combination with each other, of amber durum and any variety of the class CWSP
Total % Wheats of other classes or varieties and contrasting classes ^{Footnote 3}	3	5	10	10%, either alone or in combination with each other, of amber durum and any variety of the class CWSP
Artificial stain, no residue %	0.0	0.1	0.1	2.0
Blackpoint %	10	20	35	No limit
Natural stain %	1	2	5	No limit
Shrunken %	3	3	3	4
Broken %	3	5	8	13
Total % Shrunken and broken	3	5	8	15
Table 3 Notes Footnote 3 See working tolerance for Wheats of Other Classes or Varieties (WOOC) Return to footnote 3 referrer

Wheat, Canada Western Red Winter (CWRW), grading factors included in total damage
Grading factor	No. 1 CWRW	No. 2 CWRW	No. 3 CWRW	CW Feed
Binburnt, severely mildewed, rotted, mouldy %	0.01	0.01	0.03	2.50
Total % Heated, binburnt, severely mildewed, rotted, mouldy	0.1	0.1	0.5	2.5
Fireburnt %	0.0	0.0	0.0	2.0
Fusarium damage %	0.8	1.0	1.5	4.0
Sawfly, midge %	1	5	7	No limit
Penetrated smudge %	0.1	1.0	3.0	No limit
Total % Smudge	0.3	3.0	5.0	No limit
Severely sprouted %	0.1	0.2	0.3	No limit
Total % Sprouted	0.5	1.0	2.5	No limit
Total % Damage	2	5	7	Not applicable

2026-08-01