How Long to Cook Pot Roast (Chuck Roast)
Beef chuck roast braised until fork-tender. A classic comfort food.
The Short Answer
In the oven at 325°F, pot roast (chuck roast) takes 180–240 minutes. The USDA-recommended safe internal temperature is 145°F, verified with an instant-read thermometer in the thickest part. Scroll down for all cooking methods, detailed instructions, and tips from the Professor.
Always verify with an instant-read thermometer inserted into the thickest part.
Cooking Methods
🔥 Oven
Temperature: 325°F
Time: 180–240 minutes
Rest: 15 minutes
Sear all sides in a Dutch oven first. Add 1-2 cups liquid (broth, wine, or water). Cover tightly and braise for 3-4 hours until fork-tender.
🥘 Slow Cooker
Time: 480–600 minutes
On low for 8-10 hours. Add vegetables in the last 2-3 hours so they do not turn to mush.
Pot roast is not a fast recipe. The collagen in chuck needs hours to break down into gelatin, which is what makes it fork-tender. Rushing it with higher heat gives you tough meat, not tender.
Frequently Asked Questions
Chuck roast is the classic choice. It has the right amount of fat and connective tissue to become tender during long braising. Bottom round works but tends to be drier.
The Bottom Line
Pot Roast (Chuck Roast) is straightforward to cook when you know the time and temperature. The most important number to remember is 145°F internal. An instant-read thermometer is the only reliable way to confirm doneness; color and firmness are not accurate indicators. Use the method that fits your equipment and schedule, and always let the food rest before cutting or serving. Resting allows juices to redistribute and carryover cooking to finish the job.
Source: USDA / Culinary reference | Last verified: March 19, 2026 | Our methodology