Roast for 30 minutes, turn it over and roast for 15 minutes, until the juices run clear when you cut between the leg and the thigh. (a-life-from-scratch.com)
Before beginning, make sure to rinse the beans well in a large bowl until water runs clear and all foam / bubbles are gone. (naturalsweetrecipes.com)
Roast for one hour until done or until the juices run clear when you cut a little bit. (eatwell101.com)