Catechin

HOME >
Catechin

[2025.01.28]: Why Do Some Teas Taste Astringent? Exploring the Causes and Mechanisms of Astringency

Tea can range from having no noticeable astringency to possessing a very strong one. What causes this astringency? This article explores the causes and mechanisms behind astringency in tea. Causes of Astringency Astringency arises from the binding of tea components to proteins in the oral cavity, creating a sensation of tightness or dryness. The tongue …

[2019.12.27]: The Real Cause of Astringency in Tea

Many people might think that astringency in tea comes from tannin. The fact is tannin only contributed partially to the astringency. There are two types of root cause of astringency. Besides tannin, the astringency comes from minerals too. Difference between tannin and poly phenol Summer or autumn tea is normally astringent. If you drink those …

[2017.02.28]: The true reason why some pu-erh and black tea causes stomachache

We noticed that there are a number of customers who refrain from black tea or raw pu-erh tea due to the uncomforted stomach. I too have had the same experience that I suffered from stomachache after drinking some black tea. However, it has nothing to do with black tea or raw pu-erh tea. If tea …

[2015.10.08]: What is the ideal tea for fermentation and aging?

The freshly-plucked tealeaf has green leafy aroma. When the fresh tealeaf undergoes appropriate fermentation or maturation, its green leafy aroma will becomes fruity or floral note. The fermentation of tea refers to the enzymatic oxidation, while the maturation means non-enzymatic oxidation. However, even if it undergoes fermentation or maturation, not all tea produces fruity or floral …

[2015.02.24]: Why do you brew green tea at lower temperature?

Talking about brewing Japanese green tea, many people generally has accepted that it should be brewed at lower temperature as it was always emphasized in most of the internet media and books regarding tea topics, many resources explain that sencha has to be brewed at 70-80 degree C. Nevertheless, I personally prefer to use boiling …

HOJO TEA Online Shop NEWS

Yunnan Chun Jian Green Tea from High Mountain Gardens: Yunnan Chun Jian Green Tea is now available.This tea is made from naturally grown leaves harvested from high mountain gardens at 2100m above sea level. It has a rich, long-lasting lingering aftertaste, comparable to raw Pu-erh tea. Yunnan as a Distinctive Tea Growing Region Over the past 20 years, we have explored a wide range …

Limited Loose Leaf Release of 2025 Da Xue Shan Wild Raw Pu-erh Tea: We have released the 2025 loose-leaf version of Da Xue Shan Wild Raw Pu-erh Tea.This tea comes from wild tea trees that grow naturally in the high mountains of Yunnan Province, at elevations above 2000 meters. This year, we were only able to secure a small quantity for retail, and the current release is available …