The pre-2015 grading system used in Canada and the United States had four classifications, but they sat on two different rungs. Three were stacked under the Grade A label, ranked by color: Grade A Light Amber, Grade A Medium Amber, and Grade A Dark Amber. The fourth, Grade B, sat below them and was understood by most consumers as a step down.
That structure created a problem. Consumers read the letter as a quality grade, the same way wine drinkers read scores or graders rate beef. Grade A meant premium. Grade B meant lower quality. Producers and chefs knew this was wrong. Grade B was simply darker and stronger-flavoured, harvested at the end of the sugaring season when the sap carried a deeper maple character. Bakers and restaurants actively preferred Grade B for cooking, glazing, and baking because the flavour stood up to other ingredients. Anyone who ever finished a meat reduction with Grade B knows the difference.
The mismatch between perceived and actual quality was the headline issue. Grade B was equal in quality to Grade A, only different in flavour intensity. The naming made it look inferior. Sales of Grade B at the retail level lagged for years even though demand from professional kitchens was strong. The industry needed a system that communicated what was actually different across the four grades, which is flavour, not quality.