How do you select the correct water temperature for laundry? I have a feeling that many of us don't give those dials or settings on the washer a second look. We set them once and never change the load size, type of cycle or water temperature. That's a mistake that wastes your money spent on utilities costs and can make clothes look old before their time.
What are the Differences in Washer Water Temperatures?
In most washers the hot water setting is 130 degrees Fahrenheit (54.4 Celsius) or above.
Check your washer manual and your home hot water heater settings for specifics. If you have a washer with a steam cycle, that will increase the temperature for each load.
The warm water setting is between 110 and 90 degrees Fahrenheit ( 43.3-32.2 Celsius). And, the cold water setting is between 80 and 60 degrees Fahrenheit (26.7-15 Celsius). During the winter, outdoor temperatures can greatly affect cold water temperatures. If the cold water drawn into your washer is below 60 degrees Fahrenheit (15 Celsius), detergents have a difficult time dissolving and clothes are unlikely to be cleaned very well.
How to Choose the Right Water Temperature for Laundry
Take a minute to read the care labels on each piece of clothing. You'll find the information you need to choose both your water temperature and the type of washing cycle. Following the recommendations on the label is especially important if you are a laundry novice or if the garment is new.
After you've checked the labels, it's time to sort the dirty clothes by color, fabric weight and washing temperature. You'll have much better results in controlling lint, removing soil and preventing color transfer if you wash similar types of fabric together.
If the label is missing or unclear, wash soiled clothes - particularly colored clothes - with cold water.
Using the cold water setting will cause the least damage like shrinking, fading or color bleeding. If you are not satisfied with the stain removal results, you can then move on to warm or hot water. Once you have some experience under your belt, you'll find that some fabrics can be cleaned at more than one temperatures.
One tip that works with all wash cycles and types of fabrics, is to use a cold water rinse. Rinse water has little effect on stain removal or cleaning; so cold water works just as well to rinse away detergents and suspended soil. Set the washer dial on cold rinse and leave it for every load. You'll save money by not having to heat the water.
Generations of laundry doers thought that hot water was the only way to get clothes clean (remember they once boiled clothes in a big pot for hours). But progress has brought us much better washing machines that use mechanical action to remove soil and far better laundry detergents that use surfactants and enzymes to lift and remove soil from fabrics.
Commercial laundry detergents can be safely used in any water temperature. However, results may vary. For best results when using lower water temperatures, choose a heavy-duty detergent (Tide and Persil are leading brands) to remove heavy soil.
Lower priced detergents just don't have enough cleaning ingredients to get clothes really clean in cold water.
There are still times when hot water is needed to give the cleaning and sanitation you need. Follow this water temperature guide for the best results.
When to Use Hot Water for Laundry
- Benefits: Cleans heavy soil and is best for oily stains, sanitizes linens infected with bacteria or fungus, kills insects
- Good For: White cotton clothes (underwear) worn close to the body, bed and kitchen linens, heavily soiled or sweaty garments, oily stains and sick bed linens
- Problems: Can fade colors, sets protein stains and shrinks some fabrics
When to Use Warm Water for Laundry
- Benefits: Helps to dissolve powdered detergents, more energy savings than hot water
- Good For: Washable man-made fabrics like nylon, polyester, spandex and rayon blends; lightly soiled clothes
- Problems: Can fade some colors, does not sanitize fabrics, can not remove some heavy soils and stains
When to Use Cold Water for Laundry
- Benefits: Most energy efficient and cost saving water temperature, less likely to shrink items or fade them, acceptable water temperature for any washable fabric
- Good For: Dark and bright-colored clothes, delicate fabrics
- Problems: Less efficient for removing stains; will not sanitize clothes. For best results with cold water washing, pretreat stains before washing. Use a heavy duty, enzyme-based liquid laundry detergent or one formulated for cold water. Allow heavier soiled items to presoak in the water/detergent solution to give the solution more time to break apart stains from fabrics.