Short Answer:

Chicken breast should reach an internal temperature of 165°F (74°C) to be fully cooked and safe to eat. This ensures that harmful bacteria like Salmonella are destroyed while keeping the meat juicy and tender.

Using a meat thermometer is the most reliable way to check the temperature. Once it reaches 165°F (74°C), remove the chicken from the air fryer and let it rest for a few minutes to allow the juices to redistribute for better flavor and texture.

Detailed Explanation:

Internal Temperature for Chicken Breast

Cooking chicken breast to the correct internal temperature is essential for both safety and quality. Chicken is lean and cooks quickly, but undercooking can be dangerous while overcooking can make it dry and tough.

1. Safe Internal Temperature

The USDA recommends that chicken breast reaches an internal temperature of 165°F (74°C). This temperature ensures that any harmful bacteria, such as Salmonella or Campylobacter, are destroyed. Cooking to this standard prevents foodborne illness while maintaining the integrity of the meat.

2. Using a Meat Thermometer

A meat thermometer provides an accurate way to measure doneness. Insert the probe into the thickest part of the chicken breast without touching bone. The reading should reach 165°F (74°C). Checking the temperature helps avoid overcooking and ensures the chicken is safe to eat.

3. Visual and Practical Cues

In addition to temperature, visual cues help confirm doneness. Fully cooked chicken breast is white or slightly opaque inside, and juices should run clear rather than pink. Cutting into the thickest portion provides an additional check when a thermometer is unavailable.

4. Factors Affecting Temperature

Cooking time and temperature may vary depending on the thickness of the chicken breast and the air fryer model. Thicker pieces take longer to reach 165°F (74°C), while smaller pieces cook faster. Uniform sizing ensures even cooking. Preheating the air fryer also helps the meat reach the target temperature evenly.

5. Resting After Cooking

After reaching 165°F (74°C), letting the chicken rest for 3–5 minutes is important. Resting allows juices to redistribute inside the meat, making it tender and moist. Cutting immediately after cooking can cause the juices to escape, leaving dry chicken.

6. Combining Methods

Using a thermometer along with visual inspection and timing ensures that the chicken breast is safe, juicy, and cooked evenly. Avoid relying on cooking time alone, as it may not account for varying thickness or air fryer performance.

Conclusion:

Chicken breast should reach an internal temperature of 165°F (74°C) to ensure it is safe to eat and retains its juiciness. Using a meat thermometer, checking visual cues, and resting the chicken after cooking guarantees tender, flavorful, and fully cooked air-fried chicken breast. Proper temperature control is essential for both safety and quality.