• HOME >
  • Tea constituents and functional effect

茶葉の焼成実験

The after taste of tea is one of the most important criteria in selecting tea. To demonstrate that after taste can be influenced by the minerals that exist in tealeaves, I conducted an experiment to prove my point.

Experiment: Burning tealeaves into ashes and use them to brew tea

The aim of this experiment is to prove that organic substance has nothing to do with the after taste. Once tealeaves are burnt into ashes/charcoal, there are no organic substances remained there.

  1. I choseTai Ping Hou Kui Special tribute as the subject of my experiment. This is the tea that gives very strong after taste and the leaf is long enough.
  2. Burn the tea leaf until it is completely transformed into ashes/charcoal.
  3. Brew tea with the tea ashes (place ashes/charcoal into the tea cup)
  4. Conduct tasting

IMG_1368.jpg
The tealeaf of Tai Ping Hou Kui

IMG_1372.jpg
Continue burning until the tealeaf is completely transformed into ashes.

IMG_1374.jpg
IMG_1386.jpg

  1. Hot water as a control
  2. Hot water + burnt tea leaf
  3. Hot water + Fresh tea leaf

As I expected, No.2 and No.3 gives the same level of after taste. It shows that minerals can influence the intensity of after taste. In fact it is very shocking to see that the ashes/charcoal make water taste softer and smoother. It was a very strange feeling.

IMG_1397.jpg

The burnt tea leaf gives lighter body than the fresh tea

The one interesting result is that the “BODY” of water decreased when I tasted water treated with the ashes of tealeaf. As far as I know, it is either calcium or potassium that is dictating the body of tea. I assume that these minerals might have undergone oxidation. Due to the change of chemical formula, it may have reduced tea’s body.

2Ca + O2 → 2CaO

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 Malaysia online Shop

HOJO TEA Online Shop NEWSlist

New Release of Tsuge Zairai Sencha from Sustainable Tea Garden
Tsuge Zairai Sencha 都祁在来煎茶 is made from “zairai” tea plucked in spring, from the naturally farmed tea garden located in Tsuge, Nara City, Nara Prefecture. The tea garden of Tsuge Zairai Sencha is maintained in sustainable manner applying neither pesticide nor fertilizer. Tsuge Zairai Sencha has a subtle and refreshing floral scent with a hint …
New Release of Da Xue Shan Wild White Tea Cake 2021
Da Xue Shan Wild White Tea 2021 is available now. This tea is always very popular in our shop. In Japan, we brought in loose tea this year, and for Malaysia we produced 200g cake. Mao cha before compressing into cake Very limited resources This tea is made from the wild tea, called Camelia taliensis. …

NEW ARTICLES

New Release of Tsuge Zairai Sencha from Sustainable Tea Garden
Tsuge Zairai Sencha 都祁在来煎茶 is made from “zairai” tea plucked in spring, from the naturally farmed tea garden located in Tsuge, Nara City, Nara Prefecture. The tea garden of Tsuge Zairai Sencha is maintained in sustainable manner applying neither pesticide nor fertilizer. Tsuge Zairai Sencha has a subtle and refreshing floral scent with a hint …
New Release of Da Xue Shan Wild White Tea Cake 2021
Da Xue Shan Wild White Tea 2021 is available now. This tea is always very popular in our shop. In Japan, we brought in loose tea this year, and for Malaysia we produced 200g cake. Mao cha before compressing into cake Very limited resources This tea is made from the wild tea, called Camelia taliensis. …
New Release of 2 Types of Darjeeling 1st Flush
We have released two types of Darjeeling 1st Flush Tea. The reason why the Darjeeling 1st Flush is greenish In Darjeeling tea, the 1st flush refers to the first-plucked spring tea. Usually, the Darjeeling 1st Flush tea is greenish. From the outlook, it looks like a green tea. Many people misunderstand that it is green …
Gushu Dian Hong, The Rare Yunnan Black Tea made from Ancient Tea Tree
The characteristic of Gushu Dian Hong is its intense aftertaste, and this is far better than ordinary black tea. Dian Hong means Yunnan Black Tea Yunnan black tea is called “Dian Hong” in Chinese. “Dian” means Yunnan, and “Hong” means black tea. Gushu means Ancient Tree in Chinese. After all, Gu Shu Dian Hong means …
Limited Release of Single Tree Raw Pu-erh Tea from Pine Forest Ancient Tea Garden
We have released Pine Forest Single Tree Raw Pu-erh 2019. This tea was made from the fresh tea leaves collected from very old tea trees grown under the shade of the pine forest. The tea trees are more than 300 years old. It is a good chance for you to experience the distinctive characteristic of …
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 been aged for nearly three years. Thanks to the aging, it has developed more distinctive flavour with sweet scent of sugar cane and dried fruits. Sustainable Tea Garden at high altitude of …
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, Fujian Province, China. The tea garden is located at 1000m above sea level, and the tea garden is totally sustainable, the tea trees are grown without pesticide and fertilizer. Tong Mu Shui Xian …
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. This year, we have made major improvements in the raw material, producer, and production method, resulting in a very satisfying quality. However, the production volume is extremely small; it will likely to be sold …
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 aerobic storage. We bought this year in 2018, and it has been aged in Japan and Malaysia for two years in anoxic storage condition. The production area is very near to the Myanmar border …
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, China. We started to introduce Da Xue Shan Wild tea since 2010. But 2020 version was completely renewed. This year, we changed the source of tea, the producers and the production method too. Why …

PAGETOP