• HOME >
  • How to enjoy tea

The scale built the inside of kettle is essential for tea

[2014.10.10] Posted By


Some of you may be irritated by the scale that is built up in the kettle on the inside. Are not you trying to remove them since it does not look fine? However, it is very important to keep the scale if you wish to enjoy a nice cup of tea.

The scale inside the kettle is built-up as a result of the chemical reaction

Water usually contains Calcium hydrogen carbonate. It is converted into Calcium carbonate if water is boiled. The Calcium hydrogen carbonate has a higher water solubility (16.6 g/100 ml, 20°C), while the calcium carbonate has a very poor water solubility (0.0013 g/100 ml, 25°C). The scale, mainly consists of calcium carbonate, is built-up as a result of the deposition when water is boiled and calcium hydrogen carbonate is converted into water insoluble salt.

Calcium carbonate enhances the body of tea

In fact, calcium carbonate enhances the body of the tea. It also enhances the flavour when the tea is brewed. The taste of water will be totally different if you wash your kettle with citric acid to remove scale. In particular, you may feel less flavour and less sweetness. The taste of tea becomes very narrow and you may probably wonder if the quality of tea has changed. The scale also reduces the dryness of tea. Usually, the taste of tea becomes very dry after removing the scale.

Scale also contains various trace minerals

The main element of scale is calcium carbonate. However, it also holds in various kinds of trace minerals such as iron, magnesium and so on. These minerals are also contributing to the taste of tea just like how the taste of tea is altered when tea is brewed in a clay teapot.

Increasing the body of your water using shell or coral

The calcium carbonates also the main component of shell or coral. Hence, if your water gives less body, you may also place either shell or coral in your water or kettle to boil. It sometimes helps in enhancing the body of the tea. However, the coral or shell is not only composed of the calcium carbonate, but to contain other minerals. You have to be careful since some of the shell or coral does not have good affinity with your clay teapot.

Related Articles

How to get the latest update on HOJO?

1. Follow Twitter, 2. Click "Like" on Facebook, and 3. Subscribe in newsletter. You can have the latest tea news from HOJO.

Subscribe the Newsletter to enjoy the privileges
You may receive a free sample upon purchase, or you may have the priority to purchase special products. So please remember to subscribe our newsletter as well as the social network.

HOJO TEA Online Shop NEWSlist

Gyokuro Yabukita, Single Cultivar Hon Gyokuro from Asahina
We have released a special Gyokuro, which are made from purely 100% Yabukita varieties. This tea is produced i …
New Release of Wu Jia Zhai Raw Pu-erh Tea 2018 Loose
We have released Wu Jia Zhai Raw Pu-erh Tea. It is a Loose Tea (Mao-cha). This tea was made in 2018 and has be …

NEW ARTICLES

Gyokuro Yabukita, Single Cultivar Hon Gyokuro from Asahina
We have released a special Gyokuro, which are made from purely 100% Yabukita varieties. This tea is produced i …
New Release of Wu Jia Zhai Raw Pu-erh Tea 2018 Loose
We have released Wu Jia Zhai Raw Pu-erh Tea. It is a Loose Tea (Mao-cha). This tea was made in 2018 and has be …
New Release of Tong Mu Shui Xian Black Tea
We have released very rare black tea, Tong Mu Shui Xian Black Tea. This tea is from Tong Mu Guan in Wuyishan, …
New Release of Da Xue Shan Wild White Tea 2020
We have launched Da Xue Shan Wild White Tea 2020, in loose tea. For Malaysia, we release the 200g cake version …
Limited Release of Yunnan 10 Years Vintage Black Tea 2010
We release 10-year vintage Yunnan black tea. This tea was produced in 2010 and aged in Yunnan for 8 years in a …
New Arrival of Iga Natural Red Clay Teapots and Hohins
We have received Iga Natural Red Clay Teapots and Hohins from both Maekawa Junzo and Murata Yoshiki. https://h …
Da Xue Shan Wild Raw Pu-erh Tea 2020 was Released
We have launched 2020 wild puerh tea. This wild tea is from Da Xue Shan located in Lincang of Yunnan Province, …
3 Ways to Enjoy White Tea
Recently, white tea has been gaining popularity. However not many people are aware that there are different wa …
High Mountain Purple Black Tea 2020 is Now Available
We have released High Mountain Purple Black Tea 2020. It was unexpectedly well-made this year. I am truly deli …
We have released the Flower of Ancient Tea Tree
We have released the Flower of Ancient Tea Tree. This is the fresh tea flowers hand-picked from old tea trees …

PAGETOP