In 2007, Robb and Lydia Turner bought an 800-acre estate in Dover Plains, NY, as a country escape for their family. They soon discovered that the property had a forest of syrup-producing sugar maples.

We all know that foods like beans and cabbage may give us gas. There is one case, though, where gas gives us food. Fortunately, it’s not the same kind of gas. From roughly mid-February through the end ...