Grade b maple syrup has more vitamins and nutrition than grade a maple syrup
Maple syrup is basically divided into two groups A and B. These grades signify the season in which the syrup was made. Grade A Maple syrup is collected in early season, whereas Grade B syrup is collected in late season. This effects their taste as Grade A has a milder and more delicate flavour and Grade B has a dark color with robust flavour.
The real difference is that there is less sugar content in the sap used to produce Grade B, therefore it needs to be boiled longer to become syrup, and thereby appears darker and thicker. Truth be known, Grade B even though it's darker, has the same density as Grade A or even Fancy for that matter.
The only difference is the taste and color. There are no real nutritional differences. If your read the nutrition facts on each bottle or even just look them up on the internet you will find that there are no differences between grades, although there are some slight differences between brands.
Is grade A more nutritious than grade B?
Do it affect the master cleansing results?