In stock clarification, the floating layer of impurities is removed to produce a clear broth. What is this layer called?

In stock clarification, the floating layer of impurities is removed to produce a clear broth. What is this layer called?

• A. Skim
• B. Foam
• C. Sediment
• D. Raft

Answer: (D)

In stock clarification, the floating layer that forms on the surface and is removed to yield a clear broth is called a raft. It’s the coagulated mass of proteins, fats, and solids that rises to the top (often formed or aided by adding clarifiers like egg whites in a consommé), trapping impurities as the liquid passes around and under it. Skimming the surface deals with unwanted foam or scum, but the structured floating layer you remove during clarification is specifically the raft. Sediment sits at the bottom, not on top, and foam or scum describe the surface film rather than this formed layer.

In stock clarification, the floating layer that forms on the surface and is removed to yield a clear broth is called a raft. It’s the coagulated mass of proteins, fats, and solids that rises to the top (often formed or aided by adding clarifiers like egg whites in a consommé), trapping impurities as the liquid passes around and under it. Skimming the surface deals with unwanted foam or scum, but the structured floating layer you remove during clarification is specifically the raft. Sediment sits at the bottom, not on top, and foam or scum describe the surface film rather than this formed layer.