What is vacuum frying (VF) in veggie chips processing?
Vacuum frying (VF) is a frying technique that uses a vacuum to fry food at lower temperatures than traditional frying methods. Compared with traditional frying (atmospheric conditions), vacuum frying reduced acrylamide formation in veggie chips dramatically by about 94%. Vacuum frying vegan snacks at 118°C produced fruit and vegetable-based snacks with low acrylamide content and desirable yellow golden color and texture attributes as compared to those fried in the traditional fryer.
In veggie chips processing, vacuum frying can be used to produce high-quality fruit and vegetable-based snacks. The process consists of loading the products into the fryer basket (about 50 g per batch), closing the lid, and then depressurizing the vessel. When the pressure in the vessel achieves vacuum, the basket is submerged into the hot oil.