How Long to Slow Cook Turkey Breast?
Get a size-aware slow cooker estimate below, then verify doneness before serving. How we calculate times.
Calculator
Adjust exact weight, thickness or quantity when you need to.
Estimated cooking time
4 hr 15 min – 5 hr 45 min
- Slow cooker temp
- 194°F / 90°C
- Rest
- 10 min
Typical estimate · Cooking times vary — follow the food-specific completion and food-safety guidance.
- On Low, 5–6 hours for a 2 kg breast.
- Times assume the food starts refrigerated, not room temperature.
Turkey breast by method
At typical settings. Oven is fastest at 2 hr 9 min – 2 hr 31 min.
| Method | Typical time | Temp |
|---|---|---|
| Oven | 2 hr 9 min – 2 hr 31 min | |
| Slow cooker | 4 hr 15 min – 5 hr 45 min |
How to slow cook turkey breast
Start checking at the early end of the 4 hr 15 min – 5 hr 45 min estimate. Appliance output, size and starting state vary, so use the settings above and follow the food-specific completion and safety guidance.
Slow cooker turkey breast time by size
| Size | Approximate | Time |
|---|---|---|
| Boneless | ≈800 g | 4 hr 15 min – 5 hr 45 min |
| Bone-in | ≈2.5 kg | 4 hr 15 min – 5 hr 45 min |
Fresh vs frozen
Cooking from frozen takes roughly 50% longer and cooks less evenly. These estimates are for a bone-in.
Fresh / refrigerated
4 hr 15 min – 5 hr 45 min
From frozen
6 hr 23 min – 8 hr 38 min
USDA guidance allows frozen poultry and meat to be cooked without thawing; allow extra time and never thaw at room temperature.
How to know when it's done
Time is an estimate — temperature is the truth. Check the thickest part with an instant-read thermometer: turkey breast is safely done at 165°F / 74°C.
Food-level cooking reference: BBC Good Food — How to cook a turkey crown (checked 2026-08-18). CookCue applies deterministic adjustments; food-safety guidance is sourced separately.
Frequently asked questions
What temperature should turkey breast reach?
74°C (165°F) at the thickest part of the breast. Pull it a few degrees early — it climbs while resting.
How do I keep turkey breast from drying out?
Brine or salt it a day ahead, roast at 190°C, and rest 15 minutes before carving.