The internal color of a meatball is not a reliable doneness indicator. A chicken or turkey meatball cooked to 165°F is safe, regardless of color. To measure the doneness of a meatball, insert an instant-read thermometer into the center of meatball.
Because chile peppers contain volatile oils that can burn your skin and eyes, avoid direct contact with them as much as possible. When working with chile peppers, wear plastic or rubber gloves. If your bare hands do touch the peppers, wash your hands and nails well with soap and warm water.