Caffeine Content of Teas


  Caffeine Content
% of Total Weight
GREEN
Temple of Heaven Gunpowder (4/2002)1.7
Hà Giang (4/2000)2.6
Sencha Supreme (4/2002)2.6
Makaibari Organic Green FTGFOP (4/2000)2.7
Nature's Garden Koslande Estate Green OP (4/2002)2.7
Dragon Well, Lung Ching (4/2000)3.1
Bubbling Spring Rolled Green (4/2000)3.2
Gyokuro Asahi (Pearl Dew) (4/2000)3.2
Zhejiang Mao Feng (4/2002)3.2
Dragon Well, Lung Ching (4/2002)3.2
Emerald Tips (4/2000)3.6
Organic Dragon Well Lung Ching (4/2002)3.6
Organic Lu'An Melon Seed Green (4/2002)3.8
Organic Clouds of Green (4/2002)4.0
WHITE
Silver Needle Yinzhen (4/2000)3.1
Mutan White (4/2000)3.4
Drum Mountain White Cloud (4/2000)3.5
Mutan White (4/2002)3.6
JASMINE
Fanciest Jasmine Moli Huacha (4/2002)3.7
OOLONG
Ti Kwan Yin (Iron Goddess) (4/2000)2.3
Jade Pouchong (4/2002)3.0
BLACK
Darjeeling TGFOP (4/2000)2.4
Keemun Qihong (4/2000)2.6
Kenilworth OP (4/2000)2.8
Assam TGFOP (4/2000)3.7
Assam TGFOP (4/2002)3.7
SCENTED BLACK
Earl Grey (4/2002)2.1
BLENDED
English Breakfast (4/2002)3.4
PU-ERH
Green Pu-erh (4/2000)1.7
Large Leaf Aged Pu-erh from Old Trees (4/2002)1.7
Loose-leaf Pu-erh (4/2000)1.8
Aged Green Pu-erh Brick (4/2000)2.6
Tibetan Mushroom Pu-erh (4/2000)3.0
1st Grade Pu-erh Tuocha Camel Breath (4/2002)3.1
Pu-erh Tuocha Camel Breath (4/2000)3.4
DECAFFEINATED
Decaffeinated English Breakfast (4/2002)0.2
The finely ground tea was extracted with hot water. Caffeine in the extract was quantified by reversed phase liquid chromatography with UV detection.