In the cleanroom

Following cutting, the Tencha leaves wait for their crowning moment, for which they are transferred to the cleanroom.

In this sterile environment, where temperature and moisture levels are kept at a constant, there are granite grindstones set up together in a special way.

During the grinding process, the tea is powdered down to a particle size of 5 to 17 micrometers i.e. 0.0005cm – 0.0017cm.  A single particle is invisible to the naked eye. For one Matcha tin of 30g, the granite grinding needs about an hour to achieve this level of fineness. The process cannot be replaced by mechanical means. Only the centuries-old technique of grinding in the granite mill is gentle enough to preserve all the properties of the Matcha tea.

Continue to → How Matcha is ground