Official Grain Grading Guide

Effective August 1, 2023

The Official Grain Grading Guide is a complete reference on the grading of grains, oilseeds and pulses.

Table of contents

  1. List of revisions
  2. Test weight
  3. Moisture testing
  4. Specifications for sieves
  5. Wheat
  6. Rye
  7. Barley
  8. Oats
  9. Triticale
  10. Mixed grain
  11. Canola and rapeseed
  12. Flaxseed
  13. Domestic mustard seed
  14. Buckwheat
  15. Sunflower seed
  16. Safflower seed
  17. Peas
  18. Corn
  19. Lentils
  20. Beans
  21. Soybeans
  22. Fababeans
  23. Chick peas
  24. Canary seed
  25. Screenings
  26. Experimental grades of wheat
  27. Sample feed grain
  28. Standard abbreviations
  29. Glossary
  30. Active Grain Standards List

Contact

For more information on the Official Grain Grading Guide please contact us:

Phone: toll-free 1-800-853-6705 or TTY 1-866-317-4289

Email: contact@grainscanada.gc.ca

Download the guide

Official Grain Grading Guide (PDF)

Did you know?

  • The Guide is used by Canadian Grain Commission grain inspectors as a complete reference on the grading of grains, oilseeds and pulses.
  • It is reviewed and revised to incorporate changes to grade specifications and tolerance levels recommended by the Western and Eastern grain standards committees and to update definitions and grading procedures.
  • The web version of the Official Grain Grading Guide is a document controlled under our International Organization for Standardization (ISO) provisions.
  • The web version will be updated as and when changes are made. Copies printed from the website are not controlled.
  • Users of printed copies should be aware that changes may occur without notification.
  • Users of printed copies are encouraged to check the web version on a regular basis to ensure they are working with a current version.
  • Unless a grain variety has been registered by the Canadian Food Inspection Agency, it is eligible only for the lowest grade as established by regulation. For a list of registered varieties and other information related to the registration of plants in Canada, go to the Canadian Food Inspection Agency website.
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