Grain grading modernization



In 2017, the Canadian Grain Commission began a review of the Canadian grain grading system as part of its commitment to continuous improvement.

Grain grades and specifications continue to be important components of Canada’s grain grading system. This review will ensure that

  • grain grades are evaluated using effective, precise and user friendly tools
  • the grain grading system responds to the needs of Canada’s grain sector, including farmers, processors, exporters and buyers of Canadian grain
What we’re doing

What we’re doing

As part of the review process, we are assessing the following elements of the grading system.

  • Decimal precision of grading factors
  • Standard and guide samples
  • Commercial cleanliness
  • Guidance documents and work procedures
  • Fusarium damage and end-use functionality
  • Grading factors
  • Official Grain Grading Guide

How potential changes are evaluated

Any refinements made as a result of the review will be considered carefully and supported by scientific research. Changes to the grain grading system will be made based on recommendations from the Eastern Standards Committee and the Western Standards Committee. Each committee includes:

  • grain producers
  • grain handlers
  • processors
  • exporters
  • scientists

Next steps

We continue to engage with the industry and evaluate possible refinements to Canada’s grain grading system. As the review progresses, we will provide updates about any changes that result.

Changes so far

Changes so far

Consistent decimal precision in grading factors

The Canadian Grain Commission reviewed the consistency of grading factor decimal precision in the Official Grain Grading Guide. The Canadian Grain Commission will align the decimal precision of the grading factors and change tolerances (where necessary) to use the correct number of decimal places in the grade determinants tables. The Official Grain Grading Guide will be updated to reflect these changes.

All tolerance changes required to align the decimal precision of every grading factor will be effective on July 1, 2019 in eastern Canada and on August 1, 2019 in western Canada.

Adjusting the individual tolerance for small seeds and roughage in commercial cleanliness for wheat

The Canadian Grain Commission discovered that approximately 75% of non-conformances that occur during vessel loading are due to overages in the individual small seeds and roughage components, even though the total small seeds, roughage and attrition is within tolerance.

The tolerance for small seeds and roughage in wheat will be increased from 0.05% to 0.1%. The attrition and total small seeds, attrition and roughage tolerances will remain the same at 0.1%. This adjustment will be effective on February 13, 2019.

New standard samples for assessing mildew and frost/heat stress in wheat

The Canadian Grain Commission has demonstrated that frost/heat stress and mildew do not have a compounding negative effect on the end-use functionality of wheat. Changes have been implemented to the assessment tools for these grading factors.

Western Canada

  • New standards for frost, heat stress and mildew came into effect on August 1, 2018, for Western wheat classes
  • Individual standard samples for frost/heat stress and mildew have replaced the combined standard samples as the assessment tools for these grading factors in all classes of Western Canadian wheat

Eastern Canada

  • The guides for mildew in Eastern wheat classes were renamed as standards, effective July 1, 2018

The Canadian Grain Commission continues to look at the composition of the mildew and frost/heat stress standards in relation to the impact of these factors on end-use functionality.

Based on this research, the standard samples may be adjusted further to ensure they are accurate, relevant and objective tools.

Related links

Related links

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