Preheating the low fat fryer is optional. Preheating takes approximately 5 minutes. To preheat the appliance you turn the timer knob to 5 minutes and wait until the timer rings after approx. 5 minutes. Then fill the basket and turn the timer knob to the required preparation time.
You can also put the ingredients into the basket immediately, without preheating. The preparation time will be 5 minutes longer if you do so.
Example: The ingredients need a preparation time of 10 minutes in a pre-heated appliance. If the appliance is cold when you start, you have to set the timer knob to 15 minutes. If you are going to prepare a second batch of fries right after the first, this batch only needs a preparation time of 10 minutes.