Biochar is charcoal-like organic material such as wood that has been burned in oxygen limited conditions. I found a big bag at Koolau Farms – one cubic foot – for $55! This will probably be the most expensive purchase for me in my journey into Korean Natural Farming (I shall use the abbreviation KNF), and a little will go a long way because I will not use it in the traditional way of adding cups to potted plant soil, but will use it sparingly along with the other formulas of KNF. Its effectiveness in the soil lasts for years and years.

Biochar under a microscope looks like pockets of pocketed caverns. It is very light, porous and can last for thousands of years. Its structure is ideal for storing water, nutrients and housing for microorganisms – the bedrock of Korean Natural Farming. It lets plants grow to their full potential.

It is different from charcoal that you use to grill with because of the way it is made. Instead of releasing carbon into the atmosphere, it is stored as a carbon negative energy. It is easy to make yourself, but not recommended because you could start a neighborhood fire if you are not careful, and probably illegal to do so given our strict county laws.

Biochar is the easiest “ingredient” without any processes, mixing, or waiting, except going to the store and buying it (or having a friend share it with you). Master Cho (originator of KNF) has been teaching and practicing KNF around the world. He took a parcel of land in the Gobi desert in Mongolia and put 4 pieces of biochar and IMO4 per tree planting, and the previously barren area now has trees that can survive the severe habitat of high winds and sparse rainfall.

Here is a TedXHilo talk by Josiah Hunt of Pacific Biochar, a biochar enthusiast. An early goal of his was to save the world and get paid for it.

Stay tuned for more “episodes” on Korean Natural Farming with Aunty!