In the Netherlands, Eat, Drink and Be Monitored

Some studies will focus on waste — one-third of all food is thrown out in the Netherlands, Mr. Koster said. On a tour of the restaurant’s many secrets, he pointed out a storage tank beneath the lawn. Kitchen waste will be kept and taken to a farm, he said, to be mixed with animal dung to produce biogas.

If this works, the solution could be used in large institutions like schools, hospitals or prisons, he continued. “We’ll call this an experiment in green catering, if you will,” he said