Maple syrup

To obtain 1 liter of maple syrup, the water must be evaporated from 20 to 50 liters of maple juice.

An excerpt from the article 24 facts about maple syrup
In the process of water evaporation, a syrup is obtained with a temperature higher by 4.1 degrees C than the boiling point of water. The finished syrup has a density of 66 on the Balling scale (sugar content in the solution).