Mold in Coffee Maker? How to clean Coffee Maker With Vinegar

mold in coffee maker

Most mold in coffee maker is attributed to poor cleaning of the pot. Although there is a popular belief that the hot water in your coffee machine is as good as the germs it removes. This is only a partial truth!!


According to NSF “NSF International in a 2011 study on 22 households“, came to a shocking conclusion. “That half the brewers in these houses are prime breeding grounds for yeast and mold”. Of these, one out of every ten coffee machines harbored the coliform bacteria.

More shocking was the discovery that the coffee reservoirs, averaged a larger germ count than door handles of bathrooms and toilet seats.

Most of the growth of mold in a coffee maker is attributed to poor cleaning of the appliance. Although there is a popular belief that the hot water in the appliances is good as the germs it removes. Well, this is only a partial truth.

Running hot coffee through the appliance as a disinfectant is not entirely useful. Though it may eradicate some germs, but not get rid of the dirt and mold.

It also does little for the hard water minerals that collect with every coffee making cycle.

A good way to go according to professionals on how to get rid of mold in coffee makers is the use of vinegar. This simple ingredient in many kitchens is the key to removing mold in the coffee pot.

Vinegar also helps in ‘decalcifying’ the coffee maker as well. Thus, removing the buildup scale from the coffee machine. To get rid of mold in a coffee maker, it is advisable to clean your brewer each day and decalcify with vinegar on a regular schedule.

Use warm and sudsy water in the cleaning of the filter basket, the lid, and the carafe. Clean them daily, or every time after using the coffee maker.

Accumulation of dirt depends on how regularly the coffee maker is used or left unused. The best defense against this is to ensure that your brewer is cleaned regularly, even if it is not being used.


coffee mold


How to clean Coffee Maker With Vinegar

  1. Fill the brewer with equal amounts of vinegar and water. White vinegar is most suitable for this exercise.
  2. Use a paper filter and allow the solution to brew until the chamber is half empty.
  3. Turn off the appliance. Let it sit for half an hour before finishing the process.
  4. Pour the brew back into the coffee maker and run it one more time (do not let it sit for 30 mins as in step 3 above)
  5. Rinse the brewer.
  6. Place a new paper filter, then brew again with clean water (twice)
  7. Put two spoons of baking soda into the carafe. Add some white vinegar. Swirl this around and allow to sit for a few minutes. Then use a scrubber (sponge) to rid the coffee pot of gunk.
  8. Rinse the coffee pot with clean water and allow it to dry
  9. Use a damp cloth to clean the coffee pot.


The process of using vinegar to remove mold in the coffee maker should be repeated frequently. It will prevent mold and bacteria from accumulating in the coffee machine, which may lead to the aftertaste we often experience. 



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