Dishwasher leaving tea and coffee stains on cups

There is nothing more annoying when you’re emptying your dishwasher to find that the cups and saucers are still looking stained on the inside.  This is not a fault with the dishwasher but it can be caused by one of the following reasons, or even a combination of one or two, or more:

  • If the remains of tea or coffee are left to stand in the cup or saucer for a considerable time
  • Using a short or low temperature wash cycle, as you will need a higher temperature wash to cope with heavy staining
  • Stale or damp detergent
  • Poor quality detergent
  • Hard water area without the use of Rinse Aid
  • Old or scratched crockery.  If you have any kind of surface damage to cups, you are far more likely to see stains.

As stated above, it could be a mixture or one or more of this list.  

If you are thinking about changing your dishwasher detergent, you may find switching to a good quality gel cap system is more likely to reduce stains, as the bleach content will be more able to deal with this kind of problem.

In order to help to remove stains from your crockery, you could try a diluted solution of a chlorine based sterilising solution, such as Milton.  Rinse thoroughly before putting the crockery back in the dishwasher.

 


Disclaimer: The information provided has been prepared as a guide only and the steps taken are likely to vary for different appliance models. We strongly recommend using a qualified engineer to undertake major repairs and fault finding.

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