For cleaning a station with difficult-to-remove grime, which cleaning product is BEST for a porter to use?

Scouring powder is the most effective choice for tackling difficult-to-remove grime at a station. This type of cleaning product is specifically formulated with abrasive agents that can help break down tough stains and grime, making it ideal for surfaces that require more intensive scrubbing. The abrasiveness of scouring powder allows the porter to effectively scrub away stubborn residues without damaging the underlying surface, provided they use it correctly.

Liquid detergent might be effective for standard cleaning tasks but may not have the same abrasive quality as scouring powder, meaning it may struggle against tougher grime. Soap bars are generally milder and typically used for light cleaning, but they lack the abrasive properties needed for heavy-duty grime removal. Spray cleaners can be handy for quick surface cleaning and are often formulated for light dirt and stains, but they may not penetrate more stubborn grime as effectively as scouring powder would.

Given the context of cleaning a station with tough grime, scouring powder stands out as the best option due to its strong cleaning capabilities and ability to handle more demanding cleaning chores.