Is Water Affecting Your Brew? A Guide to Best Water for Coffee

crazy by Editorial Staff | Updated on April 24th, 2023

Does water affect your coffee brew? Yes, water has a lot of effects on your coffee brew and taste. Clean water does not necessarily guarantee great taste in your coffee.


Water contains some dissolved minerals and solids that affect the quality of your coffee.

Is Water Affecting Your Brew?

Some dissolved solids are evident in your water. For example, the white deposit in a dishwasher on pans indicates that water has some dissolved elements.

The best water is one that improves the flavor and makes coffee smoother.

Top bottled water recommendations

If you suck at anything chemistry and want a reliable, easy-to-find choice for your daily brew, premium bottled water could be the answer.

However, like tap water, not all bottled water is created equal. Some have a variety of minerals added for flavor, which may make your coffee unpleasant, while others are very alkaline, resulting in a cup that lacks personality.

Crystal Geyser Alpine SpringWater 

Seven natural springs in the United States are used to bottle Crystal Geyser Alpine Spring. With a pH of 7, it is consistently in the neutral sweet spot. While the water’s minerality varies depending on which spring it originated from, it is gentler.

The TDS in the water range from 90 to 110 milligrams per liter. Low minerality protects against over-extraction during lengthier brewing methods, but similar quantities of magnesium and calcium provide brewing balance.

Crystal Geyser Alpine Spring was established in 1990 and is now a family-owned and operated business. The corporation makes environmental investments to secure its product while ensuring the health of the ecosystems that rely on these springs. 

Volvic Natural Spring Water 

Volvic is a dead-on neutral pH spring water bottled in France near the Puy de Dôme’s Clairvic Spring. The Puy de Dôme is a dormant volcano with a high level of natural filtration because of the surrounding bed of lava rock.

As a result, the mineral composition of the spring is balanced, with modest levels of calcium and magnesium, as well as other trace minerals. Volvic has a TDS level of 109 milligrams per liter.

Volvic has a similar quantity of calcium and magnesium to Crystal Geyser Alpine Spring, which helps to balance acidity and texture in the cup. In addition, Volvic is working to improve African water access and create sugar-free water drinks, particularly for children.

Danone, Volvic’s parent business, invests in regenerative agriculture, carbon neutrality, and water conservation, among other environmental efforts.

They also commemorate their unique single source by hosting a three-day event every year where visitors can participate in sports and enjoy festivities while learning about the area.

Evian Natural Spring Water 

Danone also owns Evian, bottled from many natural springs on Lake Geneva’s south side. It has a greater minerality and a slightly higher pH of 7.8 than Volvic. It has a TDS of 300 milligrams per liter and contains around three times as much calcium as magnesium.

During brewing, the greater calcium concentration produces a silkier texture and deeper, creamier flavors.

Since 1859, they’ve been a publicly-traded firm. In 1970, Danone, then the BSN company, bought the brand. Evian aims to be carbon neutral by 2020 and uses only recyclable packaging by 2025, in addition to its parent firm Danone’s many environmental initiatives.

Saratoga Natural Spring Water 

Saratoga Natural Spring Water is bottled from natural springs in Saratoga Springs, New York, with a pH of 7. It has a modest mineral content and a TDS of 73 mg/L, with more calcium than magnesium. This is another softer water that may be better suited to slower brewing methods or to reducing coffee’s acidic flavors.

Saratoga Spring Water was started in 1872 and continues to produce a variety of still and sparkling bottled water products to this day. They bottle the water in a glass in a New York facility near the source. They are dedicated to environmental sustainability and supporting American-made products as a corporation.

Mountain Valley Spring Water 

Mountain Valley Spring Water is bottled in Hot Springs, Arkansas, which has been doing so since 1871. It has a TDS of 221 and a pH of 7.7, making it one of the more difficult profiles on our list. As a result, it might be a suitable fit for quick brew methods like espresso and Aeropress.

Mountain Valley bottled water was the first to be disseminated across the United States and has been served in the United States Senate since 1920. In addition, the business is a responsible steward of the natural environment surrounding the spring.

Acqua Panna Natural Spring Water 

With a pH of 8.2 and a TDS of 121 milligrams per liter, Acqua Panna has a stronger minerality and a higher pH. This Italian product is bottled from a natural spring high in the Tuscan mountains. Although the minerality is well adjusted for extraction, some people may perceive that the coffee tastes duller due to the higher pH.

Commercial bottling began in 1880 in the spring, and it was the first still water to be bottled in plastic later that year. San Pellegrino, a part of the Nestlé company, now owns the Acqua Panna brand. The company is so concerned with the flavor of its water that they even offer food and wine combination suggestions.

Why is water important for making coffee?

We’ve all had problems with the flavor of our tap water. The level of mineral content is described by hardness and softness. During the treatment process, chemicals such as chlorine are sometimes introduced.

Water flavor is influenced by the composition and condition of house plumbing systems. Therefore, it’s not as simple as praying that the water from your tap tastes good enough to make the best coffee. You can use tap water if you like, but you might be damaging your coffee for factors we’ll discuss shortly.

During coffee extraction, trace minerals in tap water bond with flavor molecules, and the pH can switch the flavor to sour or bitter. Although procedures like distillation or reverse osmosis can remove almost everything from your water and make it ultra-pure, they can also result in flat, bland coffee.

Magnesium and calcium are the most critical minerals to have in balance while brewing coffee. Magnesium aids in the extraction of coffee’s brighter flavors, particularly eugenol, an organic component. Calcium brings out deeper flavors and gives the cup a creamy texture.

Another effect is the pH of the water. A neutral pH of 7 is good for brewing coffee, with some wiggle room on either side. More acidic water allows more subtle flavor molecules to emerge, leading to poor extraction.

Although alkaline water aids extraction, it can also mask the flavor. That is why taking the middle road is the best option when it comes to pH.

Should you make coffee using tap water?

Because tap water varies so much from location to place, there is no simple answer. Even the pipes that deliver water to your faucet can contribute trace minerals, causing water chemistry to differ from home to home in the same neighborhood!

Chemicals like chlorine and fluoride are frequently added to municipally treated water, sometimes to the point where you can smell and see the faint blue of a swimming pool in your bathtub. But unfortunately, the chlorine smell does not go well with coffee. Gross!

Because it is a function of the stone and soil through which the water has gone, the base mineral composition of your water will be determined by the aquifer in your location.

Obtaining water reports or conducting your testing might provide information about the type of water supplying your property. For coffee, mixing your minerals or purchasing bottled water may be a preferable way to start from a clean, regulated place.

Soft and hard water

Homeowners use water softeners to condition the water they use for drinking, cooking, and bathing because “hard” water has a poor reputation. The adjectives “hard” and “soft,” on the other hand, do not indicate a level of quality. Instead, they are talking about the water’s mineral composition.

More minerals are present in hard water, including the calcium and magnesium ions mentioned above. Therefore, it might produce scale buildup on your dishes and equipment because it contains more dissolved minerals.

Mineral deposits that appear as crusty white powder are known as scales. Many coffee-brewing machines have instructions to “descale” the machine frequently with a special solution that dissolves and washes away the deposits. Unfortunately, after evaporating, ‘hard’ water leaves behind chalky scale deposits, which must be removed.

Minerals are scarcer in soft water. Soft water naturally occurs in aquifers of hard, impenetrable stone that lacks easily dissolved minerals like calcium.

Is the water’s pH important?

Water has a pH of 7 and is so considered neutral. However, it can be somewhat acidic or alkaline due to the various molecules dissolved in water. As a result, the pH of ordinary drinking water in Europe can range between 6.5 and 9.5. The following is a very simplistic explanation of how pH affects coffee:

  • The acidity in your coffee is controlled by bicarbonate. To balance the flavor of coffee, you should have at least some alkalinity (“buffering”), which maintains the pH. However, despite the presence of delightful acidity in the coffee, too much alkalinity prevents us from experiencing it. The flavor is bland, earthy, and a little uninteresting. Foam is forming in the cups. Coffee tastes vinegary and sour when the alkalinity is too low.
  • Although acidic water is detrimental to extraction, it is beneficial to flavor. Corrosion of the equipment will also be an issue.
  • The flavor of raw water is good for extraction but not so good for flavor.
  • Scale formation is inhibited by lower overall hardness and alkalinity values.

Let’s look at your choices in more detail

Filtered

This is simply water purified to remove major contaminants while retaining most natural minerals. In addition, any excess carbon or bad taste will be removed by a standard filter, such as a Brita water filter, resulting in a fuller flavor in your next brew.

Purified

Purified water has been completely cleansed, but most good minerals have also been removed. Purification technologies such as reverse osmosis can often reintroduce minerals to the water, but this is a time-consuming procedure to repeat regularly!

Distilled

Similar to filtered, distilled isn’t ideal for coffee unless you’re brewing an espresso. However, distilled water is far superior to tap water.

Filtered vs. spring water for coffee

Springwater naturally contains magnesium, calcium, sodium, and potassium, while filtered water does not have these compounds. Therefore, it is advisable to use filtered water for the tastiest coffee. Most coffee houses use filter systems for water used in coffee brewing.

The lower the TDS, the tastier your coffee will be.

Filtered Water shows the flaws in coffee.

Filtered water brings out about 99% of the taste and flavor in the grounds. The grind surface area is well covered; thus, extraction is very efficient. High-quality beans result in better taste.

Alkaline water also produces healthier coffee since it neutralizes acidity in coffee.

Alkaline water and coffee

Alkaline water balances the acidity during brewing. The shortcoming of using alkaline water is that it inhibits antioxidants which have health benefits for your body.

Coffee brewing does not kill waterborne bacteria.

The ideal temperatures for coffee brewing are 200 Fahrenheit (93 Degrees Celsius). However, the temperature is below the boiling point where most bacteria are destroyed. Brewing may not kill all microorganisms in water.

It is recommendable to use alternative water filtration methods which remove bacteria. If you are cold brewing, ensure you use water from a clean source that has been filtered.

How to test your water

Dissolved solids are necessary for treating water. At low levels, they are very beneficial. At high levels, they are unhealthy. Measuring Total Dissolved Solids (TDS) is tricky. You can buy the TDS measurement devices from amazon.

Zero dissolved solids in your water give the best coffee flavors. The reading may vary depending on your water source. The higher you get from zero, the less tasty your coffee will be.

The ppm (parts per million) ranges from zero to five hundred. The acceptable range for brewing coffee is between 75 and 250 ppm. Above 300, it is dangerous and less tasty. Readings above 350 are not used in making coffee.

How TDS affects Your coffee

TDS comes in between clean water and extracting beans. Water is added to the fine ground coffee, runs through it, and dissolves coffee. TDS builds up and creates sediments in the process. The sediment covers part of your grounds, thus ruining the whole process. As a result, some grounds will not be utilized.

Prepare your brewing water at home

Taking pure water and adding the minerals yourself is one method for achieving balanced water that makes the greatest coffee and espresso. This method gives you complete control over the chemistry of your water and allows you to experiment with generating a flavor profile that suits your preferences.

Sodium bicarbonate (baking soda) and magnesium sulfate (Epsom salts) are two of the most commonly used minerals.  Many recipes exist, each with slightly varied proportions of these two ingredients. Each has its advantages and disadvantages; some are more suited to certain brewing techniques than others.

For example, harder water with higher mineral content is better for short brewing times, whereas softer water will prevent over-extraction in longer brewing methods.

The disadvantage of making your coffee brewing water is that you must start with ultra-pure, mineral-free water. You may prepare tap water on demand with a high-quality reverse osmosis filter. If you don’t have distilled water, you’ll have to go to the shop and get some.

Bottled water

Bottled water may be of different forms. This also implies that the mineral content ranges from extremely low to quite high. Bottled water with no or few minerals isn’t optimal because it’s tasteless or bitter. Still, a cup of coffee with a medium to high mineral concentration brings out the greatest flavors.

For the finest coffee, use bottled water with a minerality level (TDS or calcium and magnesium concentration) of 50 to 157 mg/l. If you’re using distilled water, look for a brand that states it has added magnesium but not calcium. This is because magnesium binds to and enriches the flavor components in coffee beans, whereas calcium imparts a bitter flavor to the finished cup.

Avoid bottled water if possible because it is costly, often contains microplastics from the packaging, and is terrible for the environment. If you don’t like your local tap water, a high-quality water filter is a far better choice.

Tips for making the perfect cup of coffee

When preparing the perfect cup of coffee, there are several factors to consider:

  • Make use of fresh water. If your coffee maker has a water reservoir, the easiest thing to do is keep topping it up as it gets low, and then it can go weeks or even months without being cleaned out. Empty it every few days and replace it with fully fresh water, then clean it well once a week. If you don’t keep track of your water, it can and will grow stale, affecting the taste of your coffee.
  • Use freshly brewed coffee. There’s a bit of a trend here where fresh is always best, and coffee is no exception. So use freshly roasted whole beans that have been ground down immediately before brewing. That is what coffee businesses do because it is the greatest way to obtain the best flavor.
  • Ensure proper brewing. It’s crucial to get it perfect whether using a cafetière, a bean-to-cup coffee maker, or any other coffee equipment. If you under-extract or over-extract the coffee, it will not taste good, no matter how good the water you use.

Why is it better to brew coffee with bottled water?

Many will agree that brewing coffee with distilled water is the finest way to achieve the perfect mix of richness and scent from the chosen coffee beans.

Everyone is aware that tap water has a particular flavor, and adding it to your coffee maker alters the taste and aroma of the coffee. The chlorine used to disinfect tap water has a major effect on the flavor of the coffee.

The mineral concentration in the water used to prepare coffee should be correct. You might use purified water and add minerals to attain this exact equilibrium. To add to the water, you can use goods like Epsom salt or baking soda.

However, brewing coffee using bottled water is the best alternative for the greatest results. Natural bottled spring water has a pH level and mineral content that are near-optimal, ensuring that the intended taste of the coffee is not adversely affected.

Pros of using bottled water for coffee brewing

  • Because bottled water is free of chalk and limestone, it enhances the coffee’s flavor.
  • Because bottled spring water has a neutral taste and is purer than tap water, the only flavor you’ll detect is the scent of the coffee, rather than the additional flavors in tap water.
  • Because there will be no lime-scale build-up, descaling your coffee machine will be simple.

Coffee is a morning boost, a pick-me-up, and a never-say-die push when things get difficult. It should be a delightful experience to use a product that is such an important part of the lives of millions of Americans. We should enjoy not only the positive effects it has on our mood and energy levels but also the delicious, rich, creamy aroma it emits.

Only by brewing our coffee with bottled spring water can we achieve this degree of flavor—water that is naturally balanced and enhances the flavors of any coffee bean blend!

What is the flavor of good coffee water?

First and foremost, you should never prepare coffee with water that doesn’t taste nice. Your water should be clear and free of any odors or dyes. The optimal water for coffee preparation should have roughly 150 mg/L of total dissolved solids at a neutral PH.

You should also search for sodium concentrations of less than 10 mg/L, total alkalinity of less than 40 mg/L, and chlorine concentrations of less than 0 mg/L/ You may learn more about the water in your area by visiting your local water supplier’s website.

Conclusion

Water quality is paramount in coffee brewing.

Always filter water, even if it is from a faucet. Use the five-step filtration by ZeroWater since the two-step process does not remove all TDS.

The lesser the TDS, the better the taste and flavor of your coffee.

Filter your tap water to remove TDs before brewing your coffee.

As for using bottled water.

Crystal Geyser Alpine Spring is our top pick for the best bottled water for coffee. It has enough minerals to produce a powerful flavor profile in coffee but not enough to cause scale in delicate equipment like an espresso machine. Nevertheless, it’s high-quality, easy to find, and makes a fantastic cup of Joe.

If you want to learn more about water and filtration, go to our sister site, the water filter market.

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Disclosure: No compensation or free products were received in exchange for writing this review.

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Editorial Staff

The editorial staff at Crazy Coffee Crave is a team of coffee enthusiasts & Baristas who enjoy the one thing we all think about as soon as we get up in the morning. Trusted by thousands of readers worldwide.