Richard Morrill, 60, at Nash Valley Farm in Windham on Monday. He started his operation 20 years ago, with the help of his dad and Bruce Christiansen.

Bruce Christiansen, 73, has been helping at Nash Valley Farm, since the start, 20 years ago, at Nash Valley Farm in Windham on Monday.

Richard Morrill stirs the sugar water as it boils down to maple syrup at Nash Valley Farm in Windham on Monday.

Bruce Christiansen helping at Nash Valley Farm on Monday.

Richard Morrill holds the instrument used to judge the grade of maple syrup at Nash Valley Farm on Monday.

Richard Morrill holds the traditional instrument to judge the grade of maple syrup by comparing color at Nash Valley Farm on Monday.

A traditional reverse osmosis system is used to separate the water from the sugar at Nash Valley Farm on Monday.

Finished maple syrup getting processed for the 2023 season at Nash Valley Farm in Windham on Monday.