Where are your teas sourced? How does this effect their purity?

Our teas are sourced from some of the world's best family-owned, rural tea farms in countries that produce the world's best teas. Regardless of where our teas are sourced, they are all triple (or even quadruple)-toxin screened for heavy metals, pesticides, and toxic mold to ensure the utmost purity.
Here are the four main countries from which our teas are sourced:
1) China accounts for more than 75% of premium tea exports, by value. It is, by far, the number one producer of premium tea globally, by volume.
2) Japan actually produces very little organic tea. This is due to the spacing of their farmland, which creates pesticide drift problems. There are, however, a few pockets in Japan that are suitable for producing pure, organic green teas. One of these is Kagoshima, where our matcha is sourced and then quadruple toxin screened. 
3) India and Sri Lanka produce almost no green tea. They mainly produce black teas, with only a small percentage qualifying as high-end, or premium-quality tea.
4) Africa and South America have become large tea producers because of their flat geography, which makes it easy for airplanes to spray pesticides and fertilizers over industrially-planted crops. 

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