Castle Rock, Colo.—When Eric Seufert brewed a test batch of beer in 2017 with water from recycled sewage, he wasn’t too concerned about the outcome. The engineering firm that approached him about the test explained the process, and together they sipped samples of recycled water. Seufert quickly understood it wasn’t too different from how water is normally handled.
“Every stream and river in this country has someone putting in their wastewater after they’ve treated it,” he said.
