Tea + Charcoal =Veggie-Friendly

Did you know that a freshness-preserving agent can be made by bamboo charcoal and tea? I didn’t. 

I read an article about the agent produced by TANKA Co.,Ltd in Saga city, which has been sold well. Since it was put on the market last January, about 180,000 units were sold in total. They say that the agent ,mainly made from bamboo charcoal and "Ureshino tea" can absorb ethylene and ammonia, both of which can spoil food,and it keeps the food fresh much longer. 

This product is not only Eco-friendly but "consumers-friendly" because it's 100 yen per unit. In addition, "veggie-friendly", isn't it?