what in the name of Dong Ding Oolong is not knowing how to distinguish:

1. Authentic flavour and taste

2. Change of tea tree cultivar

3. Effect from global warming and the acidic environment issue

4. The influence from tea production processes

Here is a taste comparing report from

1. Tea sample from a Belgian who brought back from Lugu, Taiwan this summer

2. One Dong Ding oolong collection from our centre