From the sap collected and Brix we can project the amount of finished syrup. The projected finished syrup was 39 gallons.
We actually made 42 gallons so we either under counted sap collected or under counted the Brix of the sap. Or a combination of both.
42 gallons is 334 pints giving us 1.65 pint/tap.
Syrup yield is usually expressed in pounds/tap. We think that is left over from when maple sugar was the primary product and producers were paid by the pound for sugar.
1 gallon of syrup is 11 lbs
1 pint is 1.375 lbs (11/8)
1.375 lbs/pint X 1.65 pint/tap = 2.26 lbs/tap = 2.3 lbs/tap
Syrup producers on vacuum typically get between 5 lbs/tap and 6 lbs/tap.