On a washing machine, the term “soil” refers to the level of dirtiness or staining present in the laundry load. This setting allows the user to adjust the wash cycle’s intensity and duration based on how heavily soiled the garments are. For instance, a “heavy soil” setting employs a longer wash time, increased water temperature (if applicable), and more vigorous agitation to effectively remove stubborn stains and grime, while a “light soil” option uses a shorter, gentler cycle appropriate for lightly worn or freshly cleaned items.
The presence of a “soil level” selection on washing machines is important for several reasons. It optimizes cleaning performance, ensuring that heavily soiled items receive adequate treatment while preventing unnecessary wear and tear on delicate fabrics. Selecting the appropriate level also contributes to energy and water conservation. Historically, washing machines offered limited control over the wash cycle, resulting in over-washing or under-washing of clothes. The soil level selector provides a valuable tool for tailoring the wash process to the specific needs of each load.