Mark and Susan Lockwood have made a hobby of tapping maple trees on their Seekonk property each year for the past 24 years. In a homemade evaporator, gallons of sap are boiled all day long at the end ...
Sap is the sticky substance you see oozing out of tree trunks, and many varieties are edible. Here's what to know about eating sap, plus the risks and benefits.