Carbon Farmers have been building equipment to make high quality biochar for many years both in the UK and in Kenya. Biochar has many proven applications. Unlike most commercial biochars, our Tawi stoves produce a biochar that is partially activated. This makes it highly adsorbent which, in turn, makes it better at holding onto nutrients and water. Our biochar also has a stable carbon content of over 90%; very important if you want to capture carbon at home.