About This Guide

This is an independent information site about Japanese tea. It sells nothing and ranks no products. Prices, where mentioned at all, are given only as general category bands, never for a specific product, and stock is never stated.

Sources and checking

Facts come from the Ministry of Agriculture, Forestry and Fisheries (MAFF) crop statistics, Ministry of Finance trade statistics, Wikipedia under CC BY-SA (credited, not linked as a destination), and prefectural or municipal official information. Every page carries its sources and a check date; production rankings change by year, so pages state the year of the figure they use.

What we do not do

We make no health claims about tea. Caffeine and composition are stated as facts of the leaf and the brew only. Affiliate links, if added in future, will appear only where the commission rate has been verified first-hand, and will be labelled.

Sources: Ministry of Agriculture, Forestry and Fisheries (MAFF) crop statistics; Ministry of Finance trade statistics; Wikipedia (CC BY-SA 4.0); prefectural and municipal official information. Checked 5 November 2026.