Maple Tap Sanitation Research 2010 Stephen Childs NYS Maple Specialist
Vacuum Results 2010
Average Increase 151%
Average Increase 151%
Average Increase 114%
Average Increase 114%
Average Increase 38%
Cost Evaluation New check valve sap yield – 15.6 gallons of sap = .36 gallons of syrup or $18.14 at $50 per gallon of syrup 2nd year check valve sap yield – 10.8 gallons = .25 gallons of syrup or $12.33 at $50 per gallon of syrup $18.14 - $12.33 = $5.81 gross return Investment $.35
Cost Evaluation New check valve sap yield – 15.6 gallons of sap = .36 gallons of syrup or $18.14 at $50 per gallon of syrup Old tap and drop sap yield – 7.9 gallons = .18 gallons of syrup or $9.18 at $50 per gallon of syrup $18.14 - $9.18 = $8.96 gross return Investment $.35
Increase of 67%
16% increase
Averaged 7.9 gallons per tap on old tap and drop reps
Average 84% Increase in sap yield
Gravity System Research Results For sanitation practices compared the difference between a sanitation spout on a new vs. an old drop line.
18% increase
17% increase
13% Difference
76% increase
Gravity vs. Vacuum Gravity Vacuum Two woods within sight of each other. This woods is ~50’ higher elevation East orientation Average larger trees than where vacuum is Reps can be fairly flat to very steep North orientation Used vacuum booster canisters for measurement Averaged ~15” vacuum Vacuum runs 24-7 but with many service interruptions and at each measurement