What You Need to Know
The process involves boiling maple sap to a supersaturated state (~66‑68 % sugar, Brix 66‑68) at 104‑108 °C, then cooling below 30‑35 °C to trigger nucleation. Seeding with a small grain of maple sugar initiates uniform crystal growth, while gentle stirring and slow cooling prevent coarse texture. Excessive heating causes sucrose inversion into glucose and fructose, increasing hygroscopicity and hindering solid formation.
The Science
Primary Reaction
Sucrose crystallization from supersaturated maple syrup