How to identify Canadian food - inspection.canada.ca

In a nutshell, the tiers are:

• Product of Canada - Very best - Produced here and 98% of ingredients are from Canada.
• Made in Canada - 2nd best - "Made in Canada means the last substantial transformation of the product occurred in Canada"

Others:

• "Roasted and blended in Canada" to describe coffee since the coffee beans are always imported
• "Distilled in Canada" to describe bottled water that was distilled in Canada
• "Canned in Canada" to describe a food that was canned in Canada
• "Processed in Canada" to describe a food which has been entirely processed in Canada
• "Prepared in Canada" to describe a food which has been entirely prepared in Canada
• "Packaged in Canada" to describe a food which is imported in bulk and packaged in Canada

Check the link for the full details.