How Long to Cook French Dip Shredded Beef (Boneless Chuck Roast in Au Jus) in the slow cooker

Specification: 3 lb boneless chuck roast, seared on all sides, cooked in 2 cups low-sodium beef broth with onion and Worcestershire

Target Temp

LOW (8–10 hrs)

Low & Slow

Total Time

8–10 hours on LOW

Total Cook Window

Flip Mark

No Flip

Continuous Cook

Internal Safe Temp

200°F (collagen-breakdown pull-apart window for chuck)

USDA Safe Pull

3-Step Execution Protocol

Preheat & Prep

Add french dip shredded beef (boneless chuck roast in au jus) (3 lb boneless chuck roast, seared on all sides, cooked in 2 cups low-sodium beef broth with onion and Worcestershire) to the slow cooker. Set to LOW (8–10 hrs).

Slow Cook

Cook for 8–10 hours on LOW. Keep lid on; do not stir unless specified.

Check & Rest

Two forks pulled through the roast in opposite directions separate it into long ropey strands with zero resistance; the au jus is deep mahogany. Confirm internal temperature reaches 200°F (collagen-breakdown pull-apart window for chuck). Rest for 15 minutes before serving.

Verification Basis & Testing Rig

USDA FSIS 145°F minimum for whole-muscle beef (comfortably exceeded); America's Test Kitchen "Slow Cooker Revolution" braising notes (chuck collagen breakdown ~195–205°F); Crock-Pot 6-Qt owner's manual (large roasts 8–10 hrs LOW).

Pro Tip: Save every drop of the cooking liquid — after eight hours the beef will have thrown enough juice to make au jus without any added stock, but only if you don't drain the pot on autopilot before you shred.

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