Canadian Grain Commission
Symbol of the Government of Canada

Corn is part of the grass family. It was domesticated in Mesoamerica thousands of years ago. Sweet corn is grown for human consumption. Field corn is grown for livestock feed.

A close-up of a bright green ear of corn topped with brown silk.Several stalks of bright-green corn with yellow tassels.

An ear of ripe corn partially covered by snow and standing in a field.

Top left: An ear of corn in mid-August.

Top right: Stalks of corn topped by tassels in mid-August.

Bottom: Corn ready to be harvested and used as silage, feed that is preserved through fermentation.

Canadian corn

A dish filled with Canadian corn.

A sample of Canadian corn


The Canadian Grain Commission provides resources about Canadian corn that are related to the Canadian Grain Commission’s functions as defined under the Canada Grain Act. This includes information about Canadian corn standards and grades.

Biological classification of corn

Family: Poaceae
Species: Zea mays

Growing areas in Canada

Growing areas: Manitoba, Ontario, Quebec

End uses for Canadian corn

Corn has a variety of uses. Corn is made into breakfast cereal, bread, snack foods and corn syrup. It is used to make bourbon or whisky. It is a source of ethanol for fuel. It is also used to make plastic and fabrics. In agriculture, corn is used as fish bait and livestock feed.

Canadian corn and Canada Grain Regulations

Corn is one of the grains defined in Canada Grain Regulations – Section 5. This means that the Canadian Grain Commission establishes and maintains quality standards for corn. Also, this means that corn is one of the crops protected by security. If a licensed grain company refuses or fails to pay for a delivery of corn, the producer can make a claim against security.

Canadian corn standards and grades

The Canadian Grain Commission defines Canadian grain standards and assesses the grade of grains against these standards. The Grain Grading Guide contains all the standards for Canadian grain. Chapter 17 presents the standards for corn.

The Western Standards committee and Eastern Standards committee review these grading standards and recommend changes when necessary. The committees also select the standard samples of Canadian grain used each year.