After the harvesting process comes the real work of maple sugaring, which is concentrating the sap into delicious maple syrup. Commercial producers use reverse osmosis, and Kinnan says he is ...

Lisa Gauker held up a bottle of store-bought pancake syrup. “Is this really maple syrup?” the recreation and special events supervisor for the Berks County Department of Parks and Recreation asked.

Eight years ago, Vince Portelli tapped a sugar maple tree on his brother-in-law’s property, brought the sap back to his Bloomingdale home, watched a YouTube video on how to make syrup, boiled the sap ...