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How Long to Slow Cook Chicken Breast

By The Recipes by Mom kitchen · Last checked October 21, 2026 · Not kitchen-tested; see how our recipes are made

Boneless, skinless chicken breasts typically take 3 to 4 hours to cook on the LOW setting in a slow cooker, or about 1 1/2 to 2 1/2 hours on HIGH. These times are a general guide for chicken submerged in a sauce or broth. The most reliable way to know when the chicken is cooked is to check that its internal temperature has reached 165°F (74°C).

Because every slow cooker heats differently and the size of chicken breasts can vary, the exact time may be shorter or longer. This page explains the factors that affect cooking time, how to check for doneness correctly, and how to get tender, properly cooked chicken from your slow cooker.

How Long to Slow Cook Chicken Breast: time chart

What Heat Time Done when
Boneless breasts, in sauce or broth LOW 3 to 4 hours 165°F
Boneless breasts, in sauce or broth HIGH 1 1/2 to 2 1/2 hours 165°F
Bone-in breasts LOW 4 to 6 hours 165°F

Table source: Typical ranges from standard cooking practice, not an official chart. Ovens, grills and pieces vary: start checking at the low end of each range.

Good to know

  • Thaw chicken before slow cooking; USDA advises against putting frozen meat in a slow cooker
  • Slow cookers vary; check early the first time

What changes the cooking time

Several factors determine how long chicken breasts need to cook in a slow cooker. Adjusting for them will help you use the time ranges effectively.

  • Heat setting: The LOW setting cooks food gently over a longer period, while the HIGH setting brings the cooker to its target temperature more quickly. Cooking on LOW takes significantly longer than cooking on HIGH.
  • Bone-in versus boneless: Bone-in chicken breasts take longer to cook than boneless ones. The bone insulates the meat around it, so heat takes more time to penetrate and cook the chicken through.
  • Size and thickness: Large, thick chicken breasts will take more time to cook than smaller, thinner pieces. For even cooking, try to use pieces that are similar in size. If your recipe calls for cut-up chicken, cutting the pieces to a uniform size helps them all finish cooking at the same time.
  • Starting temperature: Chicken should be fully thawed before it goes into a slow cooker. The USDA advises against starting with frozen meat because it can spend too long in the temperature range where bacteria grow quickly. Using refrigerated chicken is the standard practice for slow cooker recipes.

How to tell when chicken is done

The only certain way to know that chicken is safely cooked is to use a food thermometer. Color is not a reliable indicator of doneness. According to USDA guidelines, all poultry must reach a minimum internal temperature of 165°F (74°C) to be safe to eat.

To check the temperature, insert the thermometer probe into the thickest part of the chicken breast, making sure it does not touch any bone. For the most accurate reading, check in a few different places on the largest piece of chicken in the pot. Once the chicken reaches 165°F, it is ready. Cooking it much longer can make the lean breast meat dry and tough.

Since slow cookers vary, we suggest checking the temperature on the early side of the recommended time range, especially when using a new appliance or recipe. This helps prevent overcooking.

Tips for better results

Follow a few simple guidelines to get the best texture from slow-cooked chicken breasts.

  • Add liquid: Chicken breast is a lean cut of meat that can easily dry out. Cooking it in a sauce or broth helps keep it moist. Ensure the chicken is at least partially submerged in liquid.
  • Do not overfill the slow cooker: For best results, avoid overfilling or underfilling the slow cooker. An overfilled cooker may not heat the food evenly or reach a safe temperature in time, while a nearly empty one can cook too quickly and burn the food.
  • Keep the lid on: Every time you lift the lid of a slow cooker, heat escapes and it can take a long time to come back up to temperature. Resist the urge to peek, as this will extend the cooking time. Only remove the lid when you need to check for doneness.

Sources and method

Last checked October 21, 2026.