If you use a Tefal wok, you can prepare a tasty wok dish in no time. Since you know exactly when the pan has reached the right stir-fry temperature thanks to the red dot, you can prepare the dish really quickly. Tefal woks come in different sizes and are available for different heat sources. When choosing a new Tefal wok, make sure it's suitable for an electric, ceramic, or induction cooktop.