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4 lis 2015 · As a general rule of thumb, you can be more confident that your matcha doesn’t have radiation the further you go from Fukushima region. Luckily, the main growing regions of matcha in Japan are Uji (Kyoto Prefecture) and Nishio (Aichi Prefecture). Both of these are far west of Fukushima.
5 lut 2016 · Japanese Matcha; should I be worried about radiation risk? In March 2011, the famous and unfortunate nuclear disaster took place in Fukushima. Since that day, possible green tea contamination with radiation has been a real concern for green tea lovers around the world.
16 mar 2018 · If even the produce from the Fukushima region is back to normal readings, then matcha green tea grown elsewhere in Japan should be perfectly safe. Especially in the eastern corridor of the country, since the wind and waters are carrying the radiation west.
25 wrz 2016 · For instance, Aiya, a huge Japanese brand primarily selling matcha, releases monthly reports of radiation testing conducted on their tea, a process that certainly doesn’t come cheap. Numerous other brands do this, and are very open about the testing.
Japan has much stricter radiation limit compare to the rest of the world. Japan's radiation limit is 100Bq, while EU and USA are 500Bq and 1200Bq respectively. As of August 2014 (3 years after earthquake), no prefecture has detected with high level of radiation in tea leaf.
Most matcha in Japan is grown very far west of Fukushima, where the 2011 disaster occurred. But for those still concerned about the radiation in matcha, read on: What we know about radioactivity and the irradiation of Japanese tea leaves:
26 sty 2013 · LETTER series, posted each month on CNIC’s Japanese website, took up the issue of the radioactive cesium concentration in teas (matcha – powdered green teas) that are being distributed from the different producing areas.
