🫧 What Does Soil Level Mean on a Washer?

What Is Soil Level on a Washing Machine?

The soil level setting on a washing machine tells the machine how dirty your laundry is. Based on this input, the washer adjusts the wash time, agitation intensity, and number of rinse cycles to deliver the right level of cleaning without wasting water or energy.

Most washing machines offer three soil level options: Light, Normal (or Medium), and Heavy.

What Each Soil Level Setting Does

Light Soil

For lightly worn clothes that aren't visibly dirty — items worn for just a few hours, activewear with minimal sweat, or garments that only need refreshing. Light soil uses a shorter wash cycle with less agitation, which is gentler on fabrics.

Normal / Medium Soil

The default setting for everyday laundry — clothes worn for a full day, school uniforms, work shirts, regular household linens. This is the setting most loads should use.

Heavy Soil

For heavily soiled items — muddy sportswear, workwear with grease or grime, heavily stained children's clothing, or towels and bedding. Heavy soil extends the wash time and adds extra agitation and rinsing cycles to fully remove embedded dirt.

Does Soil Level Affect Water Usage?

Yes. On most high efficiency washers, selecting a higher soil level causes the machine to use slightly more water for the extra rinse cycles. On top-loaders with water level selectors, soil level primarily affects cycle duration and agitation speed rather than water volume.

Which Soil Level Should You Choose?

• Light — Barely-worn clothes, delicates, items that just need a freshen up
• Normal — Everyday clothing, most household laundry
• Heavy — Garden clothes, sports kit with heavy sweat/mud, grease-stained workwear, pet bedding

Common Mistake: Using Heavy Soil for Everything

Many people always leave the washer on Heavy soil thinking "cleaner is better." This actually causes problems:

• Faster fabric wear and fading from unnecessary agitation
• Higher energy and water costs
• More detergent residue if soil level is high but detergent isn't increased accordingly

Match the soil level to the actual dirtiness of the load for best results.

Soil Level vs Wash Temperature

Soil level and wash temperature work together. For heavily soiled items, combine Heavy soil level with a higher temperature (40°C–60°C) for best cleaning. For delicates or lightly soiled items, use Light or Normal with a cool or 30°C wash.

Lint in the Washing Machine

Noticing lint or fluff on your clothes after washing? This is a separate issue often caused by washing lint-shedding fabrics (fleece, towels) alongside clothes that attract lint (dark synthetics). Try separating these loads, cleaning your washer's lint filter regularly, and reducing the amount of detergent used.