The three letter rating on a washer dryer relates to the functions measured to test its efficiency and performance: energy efficiency, wash performance and spin performance.
Be a friend of the environment
The first of the three letters always relates to the energy efficiency of the washer dryer. Most white goods sold across Europe now have an EU Energy label. This rates how energy efficient a machine is in the form of a letter. Ranging from A-G, with A being the best, each washer dryer is given a rating. Since this criteria was brought in, washer dryers have become more and more energy efficient, which, in turn, has caused the energy efficiency ratings to increase. In today’s market you can find washer dryers with an energy rating as high as A+++. Each extra ‘+’ added onto the rating is equivalent to a 10% rise in energy efficiency. The higher the energy rating, the more water and electricity you will save, thus, the more money you will save on your energy bills.
Squeaky clean - everytime
The second letter represents the wash performance of the washer dryer. This is scored from A-G, A being the best and G the worst. The test wash performance, manufacturers use industry-standard strips of sewn-together six-patch swatches. Before washing, each patch gets soaked in cocoa, wine, sebum-that’s human sweat-or oily charcoal dust. There’s even a blood patch, along with an untreated control patch. After washing, technicians analyze the swatches and compare the results using a special instrument, called a colorimeter. They use the same device to analyze the swatches before washing, too. The cleaner the swatches come out, the higher the wash performance.
||Spin speeds explained
| 1200 RPM
|| 1400 RPM
|75 minutes to dry
|| 60 minutes to dry
||50 minutes to dry
|Three towels were washed separately in one washing machine, using the three spin speeds above. They were then left to dry outdoors. Here is a table showing how long each towel took to dry.
Don't get in a spin
The third rating relates to how well the spin performs. To calculate spin performance, manufactures measure the weight and moisture content of the clothes/towels/etc before and after the spin. Another test used involves spinning an item, then measuring the amount of time that passes until the fabric is dry to the touch. Look at our table on the left to get a more accurate idea of the difference between one spin speed to the next.
View washer dryers by their spin speed
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