Vibrant and fascinating: Crimson Jade, a Taiwanese black tea

Updated: Mar 8


Crimson Jade is a black tea from Sun Moon Lake, Taiwan. This tea displays a vibrant and fascinating deep red color which is why this varietal is also called Ruby. Officially know as TTES no. 18, this tea is a cross between Assam from Burma and Indigenous Taiwanese tea tree. It was first announced in 1999 by Taiwan Tea Experiment Station and has since been a lot of people’s favorite.


The tea is elegant and rich with unique aroma. This tea was picked in July, 2021. When harvest in summer, it shows a hint of fresh mint in the aroma. In the second brew in particular, I also noticed a hint of orchid. It is often said when harvested in the fall, this tea instead shows the aroma of cinnamon; in the winter, green apples; in the spring, orange blossoms.



Like Assam, TTES no. 18 is also a large leaf cultivar. Leaves are large and juicy, resulting in a rich, complex and flavorful tea.


In terms of its origin, some said instead of Assam from Burma, this tea is actually a cross from Assam that’s introduced to Nantou, Taiwan by the Japanese back in the colonial era. One way or the other, the quality of this tea is unquestionable.



Brew recommendation (tea bag/pitcher):

dose: 2.5 g (or one of our pyramid tea bag)

recommended water temperature: 205°F/175°F

first brew: 150g of 205°F water for 2.5 minutes

second brew: 150g of 205°F water for 5 minutes

third brew: 100g of 175°F water for 10 minutes


Brew recommendation (gongfu style glass/glazed):

dose: 4 g (3.5 g whole leaf + 0.5g crushed)

recommended water temperature: 205°F/175°F

first brew: 100g of 205°F water for 40 secs

second brew: 100g of 202°F water for 60 secs

third brew: 100g of 175°F water for 80 secs

fourth brew: 100g of 175°F water for 100 secs

fifth brew: 100g of 175°F water for 120 secs


If you would like to receive a free sample with your order. Add 1 CRIMSON JADE tea bag to your cart and use promocode TTES18 at checkout. Limited sample supply remaining.


a vibrant black tea oozing sweet aroma of fresh mint, warm spice and orchid.

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