Cold washes benefit clothes that have dark or bright colours that can easily run.
Washing machine cold warm hot temperature. Check your washer manual and your home water heater settings for specifics. Hot water is most often 10 degrees colder when it arrives at your machine from when it leaves your hot water heater. This means each time you wash your load using hot water theres an additional cost to you to heat up the water whereas cold water doesnt require any heating.
With my previous washing machine the washing always came out very warm. One trick to make sure the water in your washing machine is truly cold warm or hot is to check your water with a candy thermometer as it comes out of your machine. It is said that you can save an average of 57 on your washing machine running costs when washing at 30C so just image the impact you could have on your bills if you washed at 20C.
Think about 60C as a hot wash and 90C as a very hot wash. On same cotton setting they consider Hot to be 120. Cool washes at 30C or lower are good for delicate fabrics but if you need to wash garments that are more durable like cotton or lightly soiled bed linen you may want to use a warm wash temperature setting instead for more effective results.
Hot water is typically about 130 degrees Fahrenheit or warmer. In the ATC-2 valve the hotcold is set at a 4060 ratio with a restrictor on the hot side so warm is a little warmer and the hot is restricted to 115F with a bi-metal switch. I know for sure that some washers Maytag Neptune TL for example can do that but am not positive if your machine of question can do it.
Warm water is generally between 110 and 90 degrees Fahrenheit 433-322 Celsius. It provides the benefits of a warm wash while using less energy. The normal warm setting will be.
The primary benefit of hot washing is the certainty that disinfection will occur once the thermal disinfection requirements have been met. If you have a washer with a steam cycle that will increase the temperature in each load. That said most people dont have the time to check each tag before every wash or the brain space to remember the washing instructions for each item.