Definition
Greaseproof materials are impermeable to grease or oil, preventing them from soaking through. Think of the paper lining your takeout burger box. It stops the grease from getting everywhere. Unlike absorbent materials, greaseproof ones have a barrier. This barrier can be a coating or a special composition that repels oils. This makes them ideal for food packaging and cooking applications. Itβs kind of like a force field against greasy messes.