It is imperative that you never use an abrasive cleaning solution on a glass sink as it will scratch the surface and the sink will lose its lustre. As well, it will be harder to keep clean in the future. The easiest thing to do is to wipe the sink with a soft towel after each use. it only takes a second to keep it looking shiny and new. Over time, some buildup may appear so best to use a product such as Enjo with no cleaning solution--and eco-friendly too!