• 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 Tea?

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

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

Pre-Booking of Da Xue Shan Wild Tea and White Tea Mao-Cha
Using the wild tea from Da Xue Shan, we have produced w …
New Release of Geng Ma Raw Pu-erh Tea Cake 2017
We released Geng Ma Raw Pu-erh Tea 2017. (耿馬古樹生茶2017) O …

NEW ARTICLES

Pre-Booking of Da Xue Shan Wild Tea and White Tea Mao-Cha
Using the wild tea from Da Xue Shan, we have produced w …
The Field Report of Yunnan Tea in 2018
I have been staying in Yunnan since 31st of March. I ha …
New Release of Geng Ma Raw Pu-erh Tea Cake 2017
We released Geng Ma Raw Pu-erh Tea 2017. (耿馬古樹生茶2017) O …
Cooling speed of water differs depending on the volume of teapot
The smaller the size of teapot the faster the temperatu …
New Release of Li Xiang Bai Mu Dan White Tea
We released a new white tea, called Li Xiang Bai Mu Dan …
A Shiboridashi, the perfect alternative of a Gaiwan
Shiboridashi is one of the tea brewing equipments. In J …
New Release of High Mountain Purple Black Tea
We have released High Mountain Purple Black Tea. It is …
Do you know that the taste of water varies everyday?
You might have noticed that the taste of tea is not the …
New Release of Guo Gan Ripe Pu-erh from Myanmar
We released ripe pu-erh tea produced in Myanmar from th …
New Release of 11 Years Vintage Tea Aged in Malaysia
We have just released 4 types of 11 years aged vintage …

PAGETOP