Decantation is a process that separates components of a mixture based on differences in density. Learn how decantation works, see examples of mixtures that can be decanted, and find out how to use a decanter for wine. Learn what decantation is and how it works to separate liquid from solid and immiscible liquids. Also, find out how loading and filtration can help in decantation and take a quiz to test your knowledge. DECANTATION Definition Decantation is the process of pouring out a clear liquid from a vessel (after sedimentation) without disturbing the sediment (heavy insoluble settled particles). Decantation is a process of separation of liquid from solid and other immiscible liquids by removing the liquid layer at the top from the layer of liquid or solid below. It is a process deeply rooted in the tradition of winemaking.