{"schema":"askedwell-answer-v1","url":"https://askedwell.com/pages/how-long-does/bone-broth-simmer","question":"How long does bone broth need to simmer?","short_answer":"Beef or pork bone broth simmers 12–24 hours. Chicken bone broth needs 6–12 hours. Pressure cooker reduces both to 2–4 hours. Vegetable stock: 1 hour.","long_answer":"Bone broth time depends on the bone source. The goal is to extract collagen (which converts to gelatin), minerals, and flavor compounds. Larger, denser bones release these slowly.\n\nStandard simmer times:\n- Vegetable stock: 1 hour (any longer = vegetables disintegrate, bitter)\n- Fish stock / fumet: 30–45 minutes (longer = bitter from fish bones)\n- Chicken stock (regular): 3–4 hours\n- Chicken bone broth (gelatin-rich): 6–12 hours\n- Pork bone broth: 8–18 hours\n- Beef bone broth: 12–24 hours\n- Long-simmered Asian-style stock (tonkotsu, etc.): 12–18 hours active boil\n\nPressure cooker (Instant Pot, etc.) cuts time dramatically:\n- Chicken: 2–3 hours under pressure\n- Beef/pork: 3–4 hours under pressure\n\nLower temperature ≠ stronger broth — sustained moderate simmer extracts collagen better than rapid boil. Most chefs target a gentle \"lazy bubble\" surface (around 200°F / 93°C). Aggressive boil emulsifies fat and clouds the broth.\n\nThe \"done\" signal: bones crumble or feel hollow when pressed, broth gels firmly when chilled (gelatin-rich = healthy bone broth). If broth doesn't gel cold, the simmer was too short OR bones lacked connective tissue.\n\nAdding vinegar (1–2 tbsp per gallon) is traditional but contributes <5% to mineral extraction per research; it does brighten flavor.\n\nStore: refrigerator 4–5 days, freezer 3–6 months. Reduces volume during storage as gelatin sets.","duration_iso":"P1D","ranges":[{"condition":"Beef bone broth (stovetop, gentle simmer)","duration":"12–24 hours"},{"condition":"Beef bone broth (pressure cooker)","duration":"3–4 hours"},{"condition":"Chicken bone broth (stovetop)","duration":"6–12 hours"},{"condition":"Chicken bone broth (pressure cooker)","duration":"2–3 hours"},{"condition":"Vegetable stock","duration":"1 hour","note":"Longer = bitter"}],"variables":[{"name":"Bone size and source","effect":"Knuckle bones, marrow bones, joints = collagen-rich; meatless bones = less flavor"},{"name":"Temperature","effect":"Maintain ~200°F gentle simmer; boiling emulsifies fat + clouds broth"},{"name":"Roasted vs raw bones","effect":"Roasting first deepens color + flavor but doesn't change simmer time"},{"name":"Vegetable additions","effect":"Add aromatics (carrot, celery, onion) in last 2–3 hours, not at start, for fresher flavor"}],"sources":[{"label":"Harold McGee, \"On Food and Cooking\"","note":"Science of stock-making: collagen-to-gelatin conversion, mineral extraction"},{"label":"Sally Fallon, \"Nourishing Traditions\"","note":"Long-simmered bone broth tradition; 24-hour beef stock recipe"},{"label":"J. Kenji López-Alt, \"The Food Lab\" / Serious Eats","url":"https://www.seriouseats.com/the-best-pressure-cooker-bone-stock-broth-recipe","note":"Pressure-cooker timing studies; gentle-simmer testing"},{"label":"Marco Pierre White stocks chapter (1990)","note":"Classical French technique: 12+ hour brown veal stock standard"}],"faq":[{"question":"Why doesn't my bone broth gel when cold?","answer":"Most common: simmer was too short (collagen didn't fully convert to gelatin) OR bones lacked connective tissue. For reliable gel, use 50%+ joint and knuckle bones, simmer beef ≥18h or chicken ≥8h."},{"question":"Can I simmer broth overnight?","answer":"Yes — many chefs do exactly this for beef and pork. Slow cooker on low, or oven at 200°F overnight, are safer alternatives to stovetop unattended."},{"question":"Is 24-hour bone broth better than 6-hour?","answer":"For beef/pork: yes — more collagen extraction, deeper flavor. For chicken: 8–10 hours is the sweet spot; beyond 12 hours can develop \"old chicken\" off-flavor."}],"keywords":["bone broth","stock","simmer time","beef broth","chicken broth","how long to simmer bone broth"],"category":"cooking","date_published":"2026-05-20","date_modified":"2026-05-20","license":"CC-BY-4.0","attribution":"https://askedwell.com"}