Sencha and its variants will have the highest http://en.wikipedia.org/wiki/Sencha http://en.wikipedia.org/wiki/Sencha only chart I could find: http://www.o-ch

Sencha and its variants will have the highest http://en.wikipedia.org/wiki/Sencha http://en.wikipedia.org/wiki/Sencha only chart I could find: http://www.o-cha.com/green-tea-benefits.htm http://www.o-cha.com/green-tea-benefits.htm I'm able to buy loose leaf in bulk from a local store so I can't recommend a particular online retailer. In person I would go by smell rather than brand, the aroma of good sencha is very distinct.