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How Water Quality Affects Your Espresso Taste


How Water Quality Affects Your Espresso Taste

 

If you’re a coffee enthusiast or an aspiring barista, you know that espresso is more than just a drink; it’s an art form. From the type of beans used to the grind size and tamping pressure, every little detail contributes to the ultimate taste of your brew. However, there’s a crucial element that often goes overlooked: the quality of water. A whopping 98% of your cup of espresso is water, which means that the water you use can dramatically affect the taste of your coffee.

 

Let’s delve into how water quality can either elevate or hinder your espresso experience.

 

Water Quality: A Balancing Act

 

While it might seem like all water is created equal, in reality, there’s a significant difference when it comes to water for brewing coffee, particularly espresso. Water is a complex combination of minerals and impurities – its makeup can dramatically affect your espresso, impacting not only taste but also the performance of your espresso machine.

 

Hard Water vs. Soft Water

 

Hard water is high in minerals like calcium and magnesium. While these minerals can contribute positively to the flavour of the coffee, excessive amounts can result in a chalky or metallic taste. Plus, hard water can cause scale build-up in your espresso machine, reducing its efficiency over time.

 

On the other hand, soft water contains fewer minerals. While it’s gentler on your machine, it can lead to a flat and under-extracted taste in your espresso as it lacks the necessary minerals to extract the full flavour profile from the coffee beans.

 

The key is to strike a balance – you want a water hardness level that is not too high to avoid scale build-up and a metallic taste, but not too soft to prevent under-extraction.

 

Water pH Level

 

The pH level of your water, indicating its acidity or alkalinity, also plays a crucial role in coffee brewing. Ideally, your water should have a neutral pH level (around 7). Too acidic or too alkaline water can overshadow the coffee’s natural acidity, disturbing its balance and overall flavour profile.

 

How to Improve Water Quality for Espresso

 

  1. Water Filters: A good start to improving your water quality is by using a water filter. A filter can remove chlorine, other chemicals, and excess minerals from your water, improving both the taste and smell.
  2. Bottled Water: If you live in an area with particularly hard or soft tap water, consider using bottled water. Aim for brands that specify their mineral content, so you can choose one that’s not too hard or soft.
  3. Water Softeners: If you have consistently hard water, a water softener can be a worthy investment, protecting your machine from scale and improving the taste of your espresso.
  4. Test Your Water: Use a water hardness test kit to determine the hardness of your water. This will give you a better understanding of what your water might need (or not need) to make the best espresso.

 

At the end of the day, every aspect of your espresso matters, including the machine you use. If you’re in the market for a premium espresso machine, consider investing in a Rocket Espresso machine. These machines are renowned for their quality, and when paired with the right water, they can help you craft a perfect cup of espresso every time.

 

Water quality can make or break your espresso, transforming a potentially vibrant and flavourful shot into something flat and uninspiring

 

By paying attention to the water you use, you can elevate your espresso brewing and enjoy a better cup every day. After all, quality coffee isn’t just about the beans or the machine – it’s also about the water.


Samantha hails from Virginia and is a proud wife to a retired Deputy Sheriff and mother to two amazing little boys named Jack & William. A veteran product reviewer; Samantha has been reviewing products for 12 years and offers high quality product reviews with original photography.

Samantha hails from Virginia and is a proud wife to a retired Deputy Sheriff and mother to two amazing little boys named Jack & William. A veteran product reviewer; Samantha has been reviewing products for 12 years and offers high quality product reviews with original photography.

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