A formulation for creating dishwashing detergent in a hardened, compact form contrasts with liquid or gel alternatives. The methods for its creation typically involve saponification of fats or oils with a strong alkali, followed by molding and drying. An example would be combining coconut oil, olive oil, and lye, then allowing the mixture to solidify in a mold.
Producing detergent in a solid state offers several advantages. It can minimize plastic packaging, reducing environmental impact. Its concentrated nature often translates to longer use and less product consumption compared to liquid counterparts. Historically, soapmaking, including that for dishwashing, involved creating solid bars, a practice predating modern liquid detergents.