Someone once told me that hiking is just walking with terrain changes. It made it feel a lot less daunting. Similarly, stewing is just boiling but with other flavors cooked along with the beans. The only other real difference is using a specific amount of liquid instead of just a large pot of boiling water. Using a proportionate amount, in relationship to the volume of beans you’re cooking, ensures that the liquid is absorbed or served along with the beans, and you won’t drain away excess, sending all of that flavor down the pipes. Every ingredient chapter has a notes box with the ratio of liquid to ingredient to use when stewing.