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Slow Cooker

How Long to Cook Chuck Roast in the Slow Cooker

Chuck Roast in the slow cooker takes roughly 480–600 minutes at 200°F. All temperatures, flip times, and safety info are on this page.

Fast Answer
480600
min

Chuck Roast in the Slow Cooker at 200°F93°C. Pull at 145°F63°C internal. Rest 15 min.

Definitive Answer

How long to cook chuck roast in the slow cooker at 200°F

Food
Pot Roast
Cut
Chuck Roast
Appliance
Slow Cooker
Temperature
200°F93°C
Cook time
480–600 minutes
Internal temp
145°F (63°C)63°C (145°F)
Rest time
15 minutes
Source
USDA FSIS

Answer: Chuck Roast in the slow cooker at 200°F93°C takes 480–600 minutes. Pull at 145°F63°C internal and rest 15 minutes before serving.

Evidence: USDA safe minimum for whole beef cuts is 145°F, but pot roast is cooked well past that to ~195–205°F where collagen fully breaks down and the meat shreds. The safety temp is not the doneness temp here — time and tenderness are.

Chuck Roast Slow Cooker Calculator

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Temperature
Starting state
Thickness
1.002.5 cm
½″1″1½″2″1.3 cm2.5 cm3.8 cm5 cm
Estimated cook time
480600
min
Pull at 145°F63°C internal.
540:00

Estimates only. Chuck Roast cook time varies with appliance, starting temperature, and shape. Always verify with an instant-read thermometer.

°F

Safe Internal Temperature

145°F (63°C)63°C (145°F) measured at the thickest part with an instant-read thermometer.

USDA safe minimum for whole beef cuts is 145°F, but pot roast is cooked well past that to ~195–205°F where collagen fully breaks down and the meat shreds. The safety temp is not the doneness temp here — time and tenderness are.

Source: USDA FSIS

Chuck Roast Slow Cooker Cook Time Chart

TempStateTime
200°F93°Crefrigerated480–600 min
300°F149°Crefrigerated240–360 min

How to Cook Chuck Roast in the Slow Cooker

  1. 1Preheat your slow cooker to 200°F93°C.
  2. 2Cook for 480–600 minutes.
  3. 3Verify the thickest part reaches 145°F63°C on an instant-read thermometer.
  4. 4Rest for 15 minutes before slicing.

Frequently Asked Questions

How long does pot roast take in a slow cooker?

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A 3–4 lb chuck roast takes 8–10 hours on LOW or 4–6 hours on HIGH. Low-and-slow gives the most tender, fall-apart texture — it's worth the extra time.

How long does pot roast take in the oven?

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A chuck roast in a covered Dutch oven at 325°F takes about 1 hour per pound. A 4 lb roast takes 3–4 hours. Sear the meat first, then braise in beef broth with aromatics, lid on.

Can I cook pot roast from frozen?

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The Instant Pot handles frozen pot roast best — add 30 minutes to your standard pressure-cooking time. Slow cooker is not recommended from frozen because the meat stays in the bacterial danger zone too long.

What internal temperature should pot roast reach?

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195–205°F internal. Pot roast is done when a fork slides in with no resistance — the meat should shred, not slice. This is well past USDA safe (145°F); the extra cooking is what develops the tender texture.

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