In terms of maintenance, which statement about charcoal grills is true?

Charcoal grills tend to accumulate more grime compared to gas grills due to the nature of the combustion process and the materials used. When charcoal burns, it produces ash, soot, and residue that can settle on the interior surfaces of the grill. This buildup is often more significant than what is found in gas grills, which have a cleaner combustion process as they burn natural gas or propane. Therefore, it is essential to clean charcoal grills regularly to maintain their performance and longevity. Regular cleaning also helps prevent flare-ups and ensures a better flavor in the food cooked on the grill.

The other statements do not accurately represent the maintenance needs of charcoal grills. For instance, they require cleaning after each use to remove ash and other debris, making them not low maintenance compared to gas grills. Additionally, charcoal grills do not necessitate special cleaning solutions; usually, a grill brush and soap and water will suffice.