River & Stone works closely with the best farmers in Japan's most prized tea-growing regions. We take great care to work with farmers with exacting standards, which means we focus on small, family operations that grow their tea without any artificial fertilizers or pesticides.

We mill every tin of matcha to-order to maximize freshness. The mill only runs at about 40 grams per hour, making for a very laborious process. It is well worth it, as milling fresh matcha slowly ensures a very fine particle size and a greater range of aromatics in the finished tea.