Analysis of caffeine

The team at CAMELLIA SINENSIS Teahouse in collaboration with the College Centre for the Transfer of Technologies TransBIOTech, conducted a series of studies on the levels of antioxidants and caffeine in different teas. The analyses were conducted so that the results reflect what the tea drinker gets from their cup, in the context of daily consumption.

CAFFEINE CONCENTRATION OF VARIOUS TEA INFUSIONS (DETERMINATION OF CAFFEINE BY LIQUID CHROMATOGRAPHY – UV)

All teas were brewed in a teapot, in 500 ml of water, except Matcha Sendo, which has been whipped in a bowl containing 100 ml of water. It is important to note that for the matcha, the concentration of tea compared to the amount of water is higher than other teas because we chose to measure levels of antioxidants in relation to how the tea is normally consumed.

Family

Name of tea

Country

TEC (mg / 250 ml)

Green Tea

Green Tea

Gyokuro Shuin

Gyokuro Shuin

Japan

61 mg


Green Tea

Green Tea

Lu An Gua Pian

Lu An Gua Pian

China

60 mg


Green Tea

Green Tea

Long Jing Zhejiang Organic

Long Jing Zhejiang Organic

China

59 mg


Green Tea

Green Tea

Kamairicha Organic

Kamairicha Organic

Japan

59 mg


Green Tea

Green Tea

Wuyuan Zi Mei

Wuyuan Zi Mei

China

58 mg


Green Tea

Green Tea

Wei Shan Mao Jian Organic

Wei Shan Mao Jian Organic

China

58 mg


Green Tea

Green Tea

Tan Huong

Tan Huong

Vietnam

56 mg


Green Tea

Green Tea

Sencha Mobata

Sencha Mobata

Japan

51 mg


Green Tea

Green Tea

Matcha Sora (40g box)

Matcha Sora (40g box)

Japan

50 mg


Wulong Tea

Wulong Tea

Bai Hao

Bai Hao

Taiwan

49 mg


Green Tea

Green Tea

Sencha Ashikubo Organic

Sencha Ashikubo Organic

Japan

48 mg


Green Tea

Green Tea

Long Jing Shi Feng

Long Jing Shi Feng

China

48 mg


White Tea

White Tea

Bai Mu Dan Wang (50g)

Bai Mu Dan Wang (50g)

China

39 mg


Green Tea

Green Tea

Sencha Nagashima Organic

Sencha Nagashima Organic

Japan

37 mg


Black Tea

Black Tea

Darjeeling 1st Flush Jungpana organic

Darjeeling 1st Flush Jungpana organic

India

34 mg


Green Tea

Green Tea

Hojicha Isagawa Organic

Hojicha Isagawa Organic

Japan

27 mg


Pu Er and Aged Tea

Pu Er and Aged Tea

Pu Er Shou 2008 Jingmai Organic

Pu Er Shou 2008 Jingmai Organic

China

25 mg


Black Tea

Black Tea

Assam Banaspaty Organic & Fairtrade

Assam Banaspaty Organic & Fairtrade

India

22 mg


Wulong Tea

Wulong Tea

Dong Ding Mr Chang

Dong Ding Mr Chang

Taiwan

20 mg


Green Tea

Green Tea

Bancha Shizuoka

Bancha Shizuoka

Japan

18 mg


Yerba Mate

Yerba Mate

Yerba Mate Organic

Yerba Mate Organic

Brazil

18 mg


Green Tea

Green Tea

Kukicha Organic

Kukicha Organic

Japan

17 mg


Green Tea

Green Tea

Gyokuro Shizuoka Organic

Gyokuro Shizuoka Organic

Japan

17 mg


Wulong Tea

Wulong Tea

Anxi Tie Guan Yin

Anxi Tie Guan Yin

China

17 mg


Wulong Tea

Wulong Tea

Rou Gui

Rou Gui

China

16 mg


Wulong Tea

Wulong Tea

Mi Lan Xiang Feng xi

Mi Lan Xiang Feng xi

China

16 mg


Black Tea

Black Tea

Earl Grey Organic & Fairtrade

Earl Grey Organic & Fairtrade

India

15 mg


White Tea

White Tea

Bai Hao Yin Zhen (50g)

Bai Hao Yin Zhen (50g)

China

15 mg


Green Tea

Green Tea

Gyokuro Tamahomare

Gyokuro Tamahomare

Japan

14 mg


Green Tea

Green Tea

Dragon Pearls

Dragon Pearls

China

13 mg


Green Tea

Green Tea

Huiming Organic

Huiming Organic

China

13 mg


Wulong Tea

Wulong Tea

Mucha Tie Guan Yin (roasted)

Mucha Tie Guan Yin (roasted)

Taiwan

12 mg


Wulong Tea

Wulong Tea

Si Ji Chun

Si Ji Chun

Taiwan

10 mg


Black Tea

Black Tea

Bristol Chai | Arthur Organic

Bristol Chai | Arthur Organic

India

9 mg


Black Tea

Black Tea

Chai Camellia Organic

Chai Camellia Organic

India

9 mg


Green Tea

Green Tea

Genmaicha Organic

Genmaicha Organic

Japan

7 mg


White Tea

White Tea

Nan Mei Wild Tree Buds

Nan Mei Wild Tree Buds

China

0 mg


Herbal Tea

Herbal Tea

Sublime Organic (65g Bag)

Sublime Organic (65g Bag)

-

0 mg