Corn - Chapter 17 | Official Grain Grading Guide

Primary and export grade determinants table

Corn, Canada Western/Canada Eastern Yellow, White or Mixed (CW/CE)
Grade name Standard of quality Damage Stones % Foreign material Other classes %
Minimum test weight kg/hl (g/0.5 L) Degree of soundness Heated % Total % Excreta % Total Cracked corn and foreign material %
No. 1 CW/CE 68 (343) Cool and sweet, uniform size 0.1 3 0.15 0.02 2 5
No. 2 CW/CE 66 (333) Cool and sweet 0.2 5 0.15 0.02 3 5
No. 3 CW/CE 64 (322) Cool and sweet 0.5 7 0.15 0.02 5 5
No. 4 CW/CE 62 (311) Cool and sweet 1 10 0.15 0.02 7 5
No. 5 CW/CE 58 (291) May have a slight odour, not sour or musty 3 15 0.15 0.02 12 5
Grade, if No. 5 specs not met Corn, Sample CW/CE (class) Account Light Weight   Corn, Sample CW/CE (class) Account  Heated Corn, Sample CW/CE (class) Account Damaged 2.5% or less—Corn Rejected (grade) (class) Account Stones or Corn, Sample CE (class) Account Stones Over 2.5%—Corn, Sample Salvage Corn, Sample CW/CE (class) Account Excreta 50% or less – Corn Sample CW/CE (class) Account CCFM Over 50% - sample Cracked Corn and Foreign Material Over 5%—Use all other grading criteria and grade as Corn (grade) Mixed

Note:

The colour is added to the grade name.