(Translated from Thai transcript) “A simple method is its electrical conductivity. Essentially, if it's just a normal carbon, it won't conduct electricity. But activated carbon will. Another important feature is its alkalinity, in which the substance would have a higher alkaline effect compared to a normal carbon.”

“The first feature is to be able to reduce chemical and biological contaminants in vegetables to the safe levels.”

“The second is, it does not remain in the vegetables after washing."

“The third is, it must not cause any change in the fruit and vegetables. Be it color, smell or taste, as well as causing them to bruise or spoil easily.”

“On the contrary, If those substances can extend the shelf life of those veggies to be able to store even longer, that is even better.”

“Finally, it does not cause environmental contamination. Such as the water that is used with the substance when washing shouldn’t cause any problem when dump into the wastewater system.”

“As for the activated carbon produced from cassava rhizomes, it is seen as a very interesting choice because the product helps the environment. Promoting sustainability for society and nation. If we use this, we would be able to rely on ourselves. Reduce the import of substances that we ourselves cannot produce.”