Using filtered water in your coffee maker is critical to getting great espresso, but it's frequently neglected. For espresso machines, it may be the difference between a few years of enjoyment followed by ten or more!
To remove silt, chlorine, and water hardness (TH), water filters utilise an activated carbon filter. These contaminants may rapidly wreak havoc on your coffee maker if they aren't removed from the water. Inefficient heating and performance are only a few examples of problems that may arise.
These problems may lead to hefty repair costs; in some cases, the cost is so high that fixing the espresso machine isn't worth it. The bottom line is that using unfiltered water in your coffee maker can significantly shorten its lifespan, therefore it's critical to instal a decent water filter and replace it on a regular basis (about once every 12 months).
If you're using a home coffee machine, you may filter the water in one of two ways:
Using a tiny in-tank filter is the first option you have. As the name implies, it goes in the espresso machine's water tank and is connected to the machine's water supply line. Using this filter has the benefit of filtering water just before to pumping it into the boiler of your espresso maker. The filter's size is a significant drawback. For this reason, you should change the filters more often than with larger filters.