How to properly descale your coffee machine
If your coffee doesn't taste as good as it used to, it's probably due to limescale build-up. Regularly descaling your coffee machine with a suitable product or diluted vinegar will ensure that it continues to work properly and that your coffee retains its flavour.
If your coffee doesn't taste as good as it used to, it's probably due to limescale build-up. Regularly descaling your coffee machine with a suitable product or diluted vinegar will ensure that it continues to work properly and that your coffee retains its flavour.
How to properly descale your coffee machine
If your coffee suddenly tastes worse or takes longer to brew, then there is a good chance that your coffee machine needs descaling. Limescale gradually builds up in your appliance, affecting both the taste and how it works. Descaling your coffee machine regularly prevents damage and ensures your coffee tastes great.
How to properly descale your coffee machine
What is limescale and why should you descale?
Limescale forms from minerals that are naturally present in tap water. When water is heated, these minerals are left behind in your appliance. This process happens gradually, but its effect becomes clearly noticeable over time.
A coffee machine with limescale build-up has to work harder to let water pass through. As a result, it uses more energy, the temperature can fluctuate and the taste of your coffee may change. What used to produce a delicious, full-bodied cup of coffee may now deliver bitter or weak coffee.
How often should you descale a coffee machine?
How often you need to descale mainly depends on how intensively you use your machine and how hard the water is in your region. If you use your machine daily, it is usually a good routine to descale once every few months.
Many modern coffee machines will alert you when descaling is needed. If yours does not have such an alert function, it is best to pay attention to slight changes, such as slower water flow or a change in taste.
How do you descale a coffee machine?
Fortunately, descaling itself is quite simple. One method is to use a descaling solution.
Simply fill the water reservoir with a mixture of water and the descaler product, then run a cycle. Afterwards, rinse the system at least twice with clean water. Rinsing is important to make sure that residue remains do not affect the taste of your next cup of coffee.
If your machine has a specific descaling programme, it is best to follow its instructions.
What should you watch out for when using vinegar?
Vinegar is often recommended as an alternative for descaling a coffee machine. This is correct because the acidic component in vinegar helps to dissolve limescale. However, it is important to use vinegar carefully:
Preferably use white household vinegar or natural vinegar. This is the classic, clear vinegar that you also use in the kitchen. It usually contains 5 to 7% acetic acid, which is strong enough to dissolve limescale.
Cleaning vinegar is much more concentrated and therefore more aggressive. Over time, it can damage parts of your coffee machine, such as rubber seals or pipes, and is therefore not usually recommended for use with appliances.
If you use household vinegar, always dilute it with water at a ratio of about 1:1. This reduces the risk of damage, as well as the risk of a strong smell or aftertaste.
When should you avoid using vinegar?
Although it seems like a handy solution, vinegar is not suitable for every coffee machine. Some manufacturers explicitly advise against using it, because their machines’ materials or internal parts are more sensitive.
With modern or more expensive machines in particular, it is better to choose a descaling product that is specifically developed for that type of machine. These products are often slightly more expensive, but they are adapted to the way the machine works and its materials. If in doubt, consult the appliance manual for guidance.
What are the warning signs that you need to descale?
You don’t always have to wait for an alert notification from your machine. Your appliance will often give subtle signals. Have you noticed any of the following?
Your coffee is less hot?
The taste has changed?
The water is flowing more slowly?
If so, there is a good chance that limescale has built up somewhere in your appliance and that it needs to be descaled.
The sustainable benefits of regularly descaling your coffee machine
By maintaining your coffee machine properly, you ensure that it lasts longer and continues to work well. You prevent unnecessary wear and tear and get the most out of your appliance. It also avoids having to throw away coffee because its taste has gone off. Small maintenance habits can make a big difference.
FAQ – Frequently asked questions about descaling a coffee machine
Yes, white natural vinegar can be used, as long as you dilute it properly. Avoid strongly concentrated cleaning vinegar.
A descaler is safer for your appliance. Vinegar is an alternative, but it is not suitable for every coffee machine.
Always. Make sure to rinse at least twice with clean water to remove any vinegar residue or taste.
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