Solid Dish Soap Lathers and Cuts Grease – You don't need to sacrifice lather when ditching the plastic bottle. Solid dish soap lathers just as well as regular dish soap and does an incredible job at cutting through grease and grime Solid Dish Soap Details: So, what’s all the fuss about solid dish soap bars? Here are a few reasons why we love scrubbing the dishes with solid dish soap, and why we think you will, too. * Solid Dish Soap Is Plastic-Free – Each year, humans produce one million plastic bottles, leading to a devastating amount of plastic waste. Solid dish soap helps reduce plastic waste by eliminating the need for a plastic bottle altogether.