Complete knowledge of Coffee | understand the differences in coffee taste caused by water quality

Which is best for hard water and soft water?

To brew a good cup of coffee, it takes more than just the choice of cadets and roasting and brewing. 99% of the coffee poured into the coffee cup is "water". From this point of view, water can be said to be the secret key to coffee taste.

When it comes to the nature of water, there are various bottled water on the market in recent years, and we can often hear words such as "hard water" and "soft water" in our lives. In fact, according to the hardness of water to identify, water is roughly divided into hard water and soft water. The hardness of the so-called hard water refers to the total concentration of calcium and magnesium ions in the water. The lower concentration is soft water, and the higher concentration is called hard water. For example, tap water or groundwater in Japan is almost all soft water, while in Europe and America, it is mostly hard water. As for hard water and soft water in the end which is more suitable for brewing coffee, in fact, there is no certain answer, but the mineral content of water does affect the taste of water.

In general, water with too much or too little mineral content is considered to be unbalanced. If the calcium and magnesium ions are too high, it will hinder the extraction of caffeine and high-quality tannins, which are the main components of coffee. On the other hand, such as higher hardness of water quality, its impact will also be directly reflected in the bitterness of coffee.

But then again, what kind of water gives the most balance when brewing coffee depends on one's taste and preference.

You know what,

Good drinking water has certain conditions!

In fact, there are 4 basic conditions for good drinking water, namely tasteless, colorless, containing appropriate minerals (30-200mg/kg) and oxygen, and a water temperature of 10-15 ° C. Because of this, natural spring water or groundwater that meets these four conditions will brew good coffee.

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Condition

to change the flavor at the temperature of the brew.

The temperature and brewing speed of the hot water during extraction will also affect the taste.

formal

Standard

Based on your own preferences. Coffee beans have a moderate personality, bitterness, acidity and strong taste balance, is the most standard taste. The rate of hot water extraction is also standard.

American

American

A combination of light aroma and sour taste, recommended for those who cannot accept the strong bitter taste of coffee. Switching to dark roasted coffee beans will result in a bitter coffee recipe.

European-style

European

Enjoy the combination of intense bitterness and intense aroma. The European coffee formula shows a very individual taste and is also very suitable for drinking with milk.

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soft water

Soft Water

Japan's tap water, especially mineral water in the territory, is mostly soft water with low minerals. Due to the low mineral content, it has little effect on the composition of coffee. When tasting, it presents the most round and smooth taste.

One of the best soft water in Japan

Bottled soft water is made from natural water grown in nature and sealed directly on site from water sources throughout Japan (Yamanashi, Toyama, Tottori, etc.).

Forest Water

Data

Sodium:1.25mg

Calcium: 0.85mg

Potassium:0.10mg

Magnesium;0.29mg

Hardness:33.1mg/L

pH：7.0

(per 100mL)

NL hot spring water popular with women

Hot spring water from SPA resorts in new Zealand is made into micromolecular mineral water, which is highly alkaline soft water.

WAIWERA INFINITY

Data

Sodium; 0.16 mg

Calcium: 1.2 mg

Potassium: 0.26 mg

Magnesium: 0.26mg

Hardness;42mg/L

pH：8.6

(per 10mL)

medium hard water

Middle Hard Water

Water containing moderate amounts of calcium, between soft and hard water. Compared with soft water, it lacks smooth taste, but the sourness and bitterness are moderate, and the irritation is also reduced to a certain extent. It can be said that it has a balanced taste in all aspects.

Worldwide visibility

Representative brand of medium hard water

Cachat water source from the town of Evian at the foot of Lake Geneva is world-famous for its medium hard water. Contains calcium and magnesium in extremely fine proportions.

Evian

Data

Sodium; 0.7 mg

Calcium: 8.0mg

Potassium: 0mg

Magnesium: 2.6 mg

Hardness;304mg/L

pH：7.2

(per 10mL)

Hard water (super hard water)

Hard Water

European and American minerals produced in Europe and other places, mostly hard water. The water contains minerals that interact with coffee ingredients, and the brewed coffee has a strong bitter taste. It is believed to be the best choice for those who need coffee to refresh themselves at work late at night or for those who pursue stimulating taste.

Hardness over 1400 represents ultra-hard water

Ranked second in the domestic mineral water market share in France, with a fairly high hardness, it can be said that it is a representative brand of "ultra-hard water".

Contrex

Data

Sodium;0.94mg

Calcium: 46.8 mg

Potassium: 0.28mg

Magnesium: 7.45mg

Hardness;1468mg/L

pH：7.4

(per 10mL)

The big impact of a little action

... tips for making tap water taste good.

The seeds contain a lime odor that detracts from the aroma of coffee. This condition can be reduced after filtration and boiling of water purifier, and the use of activated carbon filter containing salt can also be effectively improved.

Boil water and Tilia together, even tap water will become round and smooth. Tilia stone can be semi-permanent use, is a very convenient stone.

Tokyo Water, which is sold by the Tokyo Metropolitan Water Supply Company, is tap water that has been highly purified.

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