Can I Use Any Type of Water in My Espresso Machine's Pump System?

Using the right water in your espresso machine is crucial for both the taste of your espresso and the health of the machine. Using the wrong type can lead to clogs, scale buildup, or damages that cause to you to replace your espresso machine in no time.

Understanding Espresso Machine Water Requirements

To answer the question above, no, you can't use just any type of water in your espresso machine's pump system. The water you use must meet specific requirements to ensure optimal performance, longevity, and the best possible taste in your espresso.

Here are the key factors to consider:

• Hardness - Espresso machines require water with a hardness between 50-100 ppm or 3-6 grains per gallon to prevent limescale buildup and ensure a flavorful espresso.

• pH level - The ideal pH for water in espresso machines is 6.5-7.5. High pH can cause bitter taste, while low pH can lead to sour flavors.

• Chlorine and other chemicals - Use filtered water to prevent chlorine and other contaminants from affecting the taste of your espresso and damaging your machine.

• Total Dissolved Solids (TDS) - For espresso machines, the recommended total dissolved solids (TDS) range is 75-250 ppm. High TDS can cause buildup and affect taste, while low TDS can result in a flat-tasting espresso.

• Microbial content - Use clean, safe water in your espresso machine. If using tap water, ensure it's safe to drink. If using filtered water, maintain and replace filters as recommended.

• Compatibility with your machine - Some espresso machines may have specific water requirements or recommendations from the manufacturer. Always consult your machine's manual or contact the manufacturer for guidance.

Types of Water to Use in Espresso Machines

Selecting the right water for your espresso machine is vital for both the taste of your coffee and the longevity of your machine.

As mentioned, using water not mentioned below causes fast mineral buildup on the machine's pipes and valves. You will have to descale the machine to remove the deposits. At worst, you'll have to replace its machine parts to make it work again.

There are several types of water you can use in your espresso machine, each with its own pros and cons:

Filtered drinking water

Water that has been passed through a carbon filter to remove impurities, chlorine, and some minerals. This is a good option for most espresso machines.

Bottled spring water

Bottled water contains minerals that can enhance the flavor of your espresso, but the mineral content can vary significantly between brands.

Distilled water

This is water that has been boiled and collected, leaving behind all minerals and impurities. While it won't cause mineral buildup, it can lead to a flat-tasting espresso and may cause corrosion in some machines due to its low mineral content.

Reverse osmosis (RO) water

This is water that has been purified using a reverse osmosis system, which removes almost all minerals and contaminants. Like distilled water, reverse osmosis filter water can result in a flat taste and may not be ideal for all machines.

Espresso machine-specific water

Some companies offer water that is specifically formulated for use in espresso machines, with the optimal mineral balance for taste and machine health.

Softened water

Water that has been treated to remove hard minerals like calcium and magnesium. While it reduces scale buildup, it's not recommended for espresso machines as it can leave a salty taste and potentially damage the machine.

The best water for your espresso machine will depend on your specific machine, personal taste preferences, and local water quality. In general, filtered water or espresso machine-specific water are good choices for most users.