Chicken thighs should be cooked to an internal temperature of at least 165°F (74°C) to ensure that harmful bacteria are killed and the meat is safe to eat. While leg and thigh meat are still safe at 165°F, it is recommended to cook chicken until the internal temperature reaches about 170-175°F (77-79°C) to improve the flavor and tenderness. To check the temperature of chicken thighs, it is best to use an instant-read thermometer. Insert the thermometer into the thickest part of the meat, taking care to avoid touching the bone, and ensure it reaches the recommended temperature.