Which characteristic describes a baffle grease trap?

• A. Grease floats to top of entrance chamber
• B. Grease sinks to bottom
• C. It is made of glass
• D. It is used for water purification

Answer: (A)

A baffled grease trap works by slowing the flow so fats and oils can separate from the wastewater. Because fats are lighter than water, they rise and form a greasy layer at the surface of the entrance chamber, where they can be collected and removed. This top-layer accumulation is the characteristic described and is the defining feature of how a baffled grease trap traps grease. It’s not built to purify water in general or made of glass, and grease does not sink to the bottom—the lighter fats float instead, while heavier solids may settle separately.