How many lbs f pinto beans fit a 18 qart roaster?

An 18-quart roaster can typically hold about 12 to 15 pounds of pinto beans if they're dry, as they will expand significantly when cooked. When cooked, the beans will absorb water and swell, so the final volume will be much larger. It's important to leave some space at the top of the roaster to prevent overflow during cooking.