An oil filling machine for food-grade oil is engineered and constructed to meet the stringent hygiene and safety standards mandated by food regulatory agencies worldwide (such as FDA, EFSA). Every aspect of the machine that comes into contact with the oil must be designed to prevent contamination, facilitate thorough cleaning, and resist corrosion. This means using AISI 304 or 316L stainless steel for all product contact surfaces, as these materials are non-porous, non-reactive, and can withstand frequent cleaning with aggressive detergents. The design must also adhere to sanitary principles: surfaces should be smooth and rounded without dead legs or crevices where oil and bacteria could accumulate; seals must be made from food-grade materials like PTFE or silicone; and the machine should ideally support Clean-in-Place (CIP) procedures for automated sanitation. Additional features like nitrogen inerting systems can be integrated to sparge the oil and eliminate headspace oxygen, preserving freshness and preventing rancidity in premium products. Ace-Filling's food-grade oil fillers are built with these critical requirements in mind, ensuring that the machine not only delivers precise fills but also acts as a guardian of product safety and quality, which is paramount for any edible oil producer.