Tanka Co Ltd
Vegetables and fruits normally started going rotten from the 4th day but they will stay fresh as double length as 8 days just by placing this Tanka Fresh.
It contains a gel of powdered charcoals (carbonized bamboo in 500-700 ℃ and pulverized finer than 10 microns), Japanese Tea Catechin and Silica. Very safe adsorbent made by only natural ingredients.
Ethylene gas is substance that causes aging and Acetaldehyde gas is produced by respiration of the plant and causes stench, Tanka Fresh takes these off the vegetables and fruits.