Fukushima Rice Mixed With Other Rices



From June 1, 2016

In the “7-Eleven” minimarkets in Japan, Fukushima rice is mixed with the other rices, to lower the contamination measuring and to facilitate its selling .

Minimarkets are open 24 hours a day, 7 days a week.We do not know about the other minimarkets.

Written information of origins:

1, Seven-Eleven rice 2 kg (2014 production)
Iijima rice Co., Ltd. (Koriyama, Fukushima Prefecture)
Expiration date 27.5.17

2, blend
Fukushima Prefecture Koshihikari
Fukushima Prefecture shine
Seven-Eleven US 5

Iijima rice Co., Ltd. (Koriyama, Fukushima Prefecture)
Expiration date 26.12.17

3, blend
Fukushima Prefecture Koshihikari
Akita Prefecture Akitakomachi


Knowing that we decided to measure ourselves the rice.

Pre-treatment of the sample


We stopped for a while trhe electric furnace.


First it is lyophilized (freeze-dried).


By freezing the sample.


During 43hours.


Water removal at high level by lyophilization.


Then into the electric furnace.


It is processed for 4 days at then 180-370 ℃.


A 7kg sample was reduced to about 550g.

After this sample was crushed, we gave it to be measured with a germanium semiconductor detector at the University of Tokyo.

The results are to be worried about.

Measurement results



Both types of radioactive cesium have been detected: 134Cs and 137Cs. . Proving that  convenience stores are selling the inexpensive rice from the disaster area.










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