When washing dishes with a sponge, it is generally recommended to use the soft side of the sponge for regular dishwashing. The soft side is more gentle on delicate surfaces and can be used for scrubbing away food particles and general cleaning.
The rough side of the sponge, often called the scrubber side, is designed for tougher cleaning tasks. It has a more abrasive texture and is useful for removing stubborn stains, dried-on food, or for tackling tougher materials like burnt-on grease or grime. However, it may not be suitable for delicate surfaces or non-stick cookware, as it can potentially scratch or damage them.
It's always a good idea to check the manufacturer's instructions or any specific guidelines provided for your cookware or dishware, as they may recommend using specific types of sponges or cleaning tools to ensure the best care for the surfaces.