We receive so many questions regarding the antioxidant levels in our teas. In order to provide accurate information to our customers, we decided to commission tests on our teas by an independent and certified laboratory.
We will be commissioning further research across a much larger range of our teas in the near future.
The tests we commissioned assessed the levels of Epigallocatechin gallate (EGCG) which is the most abundant and commonly found catechin/flavonoid found in tea. Flavonoids are the polyphenolic compounds contained in vegetables, fruits and plant which have been the subject of extensive research into their antioxidant effects.
Below we have included a list of the results, showing the amounts of EGCG found in each of the teas we tested. We’ve then given this in the form of mg/250ml serving.
1. Pre-Rain Jun Shan Silver Needle Yellow Tea – 75.25mg EGCG/250ml serving
2. Pre-Rain Organic Dragon Well Supreme Green Tea – 64.5mg EGCG/250ml serving
3. Organic Gunpowder Supreme Green Tea – 61mg EGCG/250ml serving
4. Organic White Peony Supreme White Tea – 50.75mg EGCG/250ml serving
5. Silver Needle White Tea – 39.25mg EGCG/250ml serving
6. Big Red Robe Supreme Oolong Tea – 26.5mg EGCG/250ml serving
7. Yellow Gold Oolong Tea – 14.5mg EGCG/250ml serving
8. Assam Breakfast Black Tea – 6mg EGCG/250ml serving
On our website, next to each tea, you will also be able to see the total levels of antioxidants for each tea. These figures include results for the less abundant antioxidants – Epicatechine, ECG and EGC.






6 comments
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October 15, 2009 at 12:53 pm
Renee
thank you, this is fantastic! do you happen to have any information as to whether the adding of milk (or soy, etc) alters the antioxident levels… I recall reading that somewhere…
October 15, 2009 at 1:17 pm
TokyoB
It is great to have this information. Thanks!
It would also be useful to determine caffeine levels.
October 16, 2009 at 10:44 pm
Lainie Petersen
This is a fantastic development. Thanks!
October 19, 2009 at 1:11 pm
Renee
Following up, I have seen studies that the addition of milk does bind with tea in such a way as to block the beneficial effects of the antioxidants. It remains unclear if the same proteins that cause problems are also in soy or other kinds of milk. It’s worth investigating!
October 19, 2009 at 1:17 pm
jingtea
Hi Renee,
Sorry we hadn’t got back to you yet. The milk addition is definitely something we can consider looking at with any more black teas we test later.
Thanks,
David.
October 24, 2009 at 5:29 pm
Jason Witt
Why, look at that! You’ve tested Dragonwell as having more antioxidants than the white tea. Some vendors insist that white tea is highest in antioxidants. It seems that’s not necessarily true at all. And even the gunpowder has more EGCG. Amazing! –Teaternity