But drill into Alan Greene's eighth-generation maple syrup operation in the town of Sebago, and you'll find it doesn't run as smoothly as it used to. "The last 10 years, we are definitely becoming ...

It takes 40 gallons of tree sap to create one gallon of maple syrup. The formula might come from science, but the result is pure magic, especially to Vermonters, who’ve been tapping and sugaring ...

If the sap is running it means the days are warmer and the nights remain cold. The freeze and thaw cycle is what starts sugar maple sap to run.