Do I need to preheat my Vortex? 21 January 2025 04:10 We recommend preheating the Vortex as most food items benefit greatly from the immediate high heat of a preheated cooking chamber — preheating only takes 5 minutes! Related articles How do air fryers work? My air fryer timer is only showing up to 1 minute. What can I do? Is air frying a healthier food preparation option than deep frying? Instant® Vortex Plus Clear Cook Air Fryer 5.7L User Manual Instant® Vortex Plus 13L Air Fryer Oven User Manual