This document is a 23 slide presentation by VITO AG about frying oil management and their VITO oil filter systems. It discusses the frying process, factors that influence frying oil quality over time, and how the VITO oiltester measures oil quality parameters. The presentation promotes VITO's portable and mobile oil filtration systems for commercial kitchens, explaining how they extend oil lifetime, improve product quality, and save labor costs. It provides examples of customer testimonials and calculations showing return on investment can be achieved within 12 months of using VITO filtration systems for frying oil management.