Soups & Stews with vinegar

1 lb dry black beans 1 lb dry red beans 1 lb dry kidney beans 1 lb dry navy beans 1 lb dry great northern beans 1 lb dry baby lima beans 1 lb dry large lima[...]

12 cups roughly chopped greens , no stems (5 of the following, spinach, collard, turnip, beet or carrot tops, mustard, chicory, kale, watercres) 1 large onion[...]

SOUP BASE: olive oil – 1/2 cup pancetta (optional) – 1 thick slice, diced jalapeño – 2 onion – 2 (diced) garlic – 6 cloves (minced) fennel – 1/2 bulb (diced)[...]