: Homemade syrup can vary from light to dark based on the timing of the sap run and the speed of the boil.
: Ensuring pans are securely leveled and locked to prevent spills of scorching hot sap.
: Often a barrel-style or dry-stacked cinder block arch with fire bricks for insulation.
: A two-pan or three-pan system where "Tray 1" acts as a warming tray for cold sap before it is moved to the high-concentration finishing pans.
: Boiling sap until it reaches a specific sugar concentration. For efficiency, many use Reverse Osmosis (RO) to remove water before boiling, which can reduce fuel consumption by over 50%.
If you are building an evaporator in this "MK.1" style, consider these design factors:
: A cord of seasoned maple produces roughly 22 million BTU, enough to yield about 10–18 gallons of syrup depending on your equipment's efficiency.