There are a few things to consider when grilling beans. First, soak the beans overnight to ensure they are fully hydrated. This will help them cook evenly and prevent them from burning on the grill. Second, use a little oil on the grilling surface to help prevent sticking and burning. Third, cook the beans over indirect heat so that they don't get too much direct flame and become charred. Finally, keep an eye on the beans and turn them frequently so that they cook evenly all around. With these tips in mind, you should be able to grill beans without any problem!