Thank you for the clarification.

The article gave me the impression that Grade A was from early in the season, and it is boiled less. Later in the season the sap has less sugar naturally so it is boiled more to concentrate the sugar, which also concentrates the other flavors. That later season sap makes Grade B. Is that the case? In that way grading makes sense, Grade A being more naturally pure, but knowing that it is only based on color throws out the whole point to me. I definitely have had maple syrup I felt had too harsh a flavor, maybe it was Grade B as I'm used to Grade A.