Sort and remove any misshapen beans. Then, wash pinto beans thoroughly and rinse.
Put the beans in a large pot and fill it with water to cover the beans with at least 2 inches of water.
Add the vegetable oil, salt and garlic.
Bring the mixture to a boil and then reduce the heat to the minimum setting on the stove and leave overnight (or let cook on low for at least 8 hours).
Once the beans are cooked and tender, add salt to taste.
