What Is The Use Of Separator Funnel?

Used to separate the greasy oils from the goodness of the liquid so the sauce is less greasy.

All liquids have their own specific gravity and density. You can put three different oils in a sep funnel, let them sit and eventually you will have three different layers. The separatory funnel having a stop-cock drain at the bottom allows you to obtain whichever layer you wish or need simply by releasing them one at a time, the first layer being the bottom.