where can I buy grade b maple syrup from in London
Diluted maple syrup is still considered real, however it isn't a pure grade. This type of syrup would be classified as Grade A. Grade B maple syrup is the real undiluted version, however it is much more expensive.
You can find maple syrup at any health store or at "whole foods market". Furthermore, you can buy it online.
Pure maple syrup doesn't contain salt.
Pure maple syrup is labeled as such and can be found at most grocery stores in the pancake and syrup aisle.
Both pure maple syrup and table syrups are predominantly sugar, however maple syrup is made simply by boiling down sap of maple trees. Pure maple syrup does not contain any thickening agents, artificial colors or flavors, or preservatives. In terms of nutrition, pure maple syrup does contain higher levels some nutrients, and some antioxidant compounds, and has a slightly lower caloric content than most table syrups.
yes.
Pure maple syrup, because it is all natural.
...then approximately three gallons of pure syrup remains.
No. Pure maple syrup is made from the sap of sugar maple trees--nothing else. There are various manufactured products labeled "pancake syrup" that have other ingredients. Those are not maple syrup.
the gay way
True. By most laws and regulations, pure maple syrup must be produced simply by concentrating (by boiling or reverse osmosis/boiling) pure maple sap.