Cast-iron cookware
Because other cookware cleaning techniques like scouring or washing in a dishwasher can remove or damage the seasoning on a bare cast-iron pan, these pans should not be cleaned like most other cookware. Some chefs advocate never cleaning cast-iron pans at all; simply wiping them out after use, or washing them with hot water and a stiff brush. Others advocate washing with mild soap and water, and then re-applying a thin layer of fat or oil. A third approach is to scrub with coarse salt and a paper towel or clean rag.
Pot washing
The classic and “old” process for cleaning pots and pans is the manual hand-washing method. Washing pots and pans by hand is still the ideal way to do the job. Cleaning by hand involves a pot-washing sink, which almost always is divided into 3 different sections. The first section, or "sink", is where the pots are washed and scrubbed. The middle section is for rinsing and the third for sanitizing.