What is Maple Sap?
Maple sap is thin, barely sweet, and as colorless as spring water. The distinctive maple taste comes only through boiling. Where does the sap come from? Maple sap is found in the living tissues of the roots, stems, twigs and trunk of the maple tree. What causes the sap flow? Sap flow is related to rising temperatures. Warming temperatures above 32 degrees F increases sap pressure. Sap runs in fits and starts from the first spring thaw until the buds turn into leaves from mid-March until April. A good maple season has warm days, but nights below freezing.
