Used extensively in the manufacturing of paper and pulp, it helps break down wood into fibers. In the chemical industry, it serves as a key ingredient in producing soaps and detergents by saponifying fats and oils. It is also employed in water treatment processes to neutralize acids and remove heavy metals. In the food industry, it aids in peeling fruits and vegetables and processing cocoa and chocolate. Additionally, it plays a role in biodiesel production by catalyzing the transesterification of oils. Its strong alkaline properties make it useful in cleaning and unblocking drains.