Pyrolysis is the foundation of high-quality biochar production. It is a controlled thermal process where agricultural biomass is heated in a low-oxygen environment. Instead of burning, the biomass is transformed into stable carbon-rich biochar while retaining valuable minerals and developing a highly porous structure.
This porous structure improves soil aeration, enhances water retention, supports beneficial soil microorganisms, and helps plants access nutrients more efficiently. At the same time, biochar stores carbon in the soil for decades, making it an effective solution for both regenerative agriculture and climate resilience.
Watch the video to discover how the pyrolysis process converts agricultural waste into a valuable soil amendment that promotes healthier crops and more sustainable farming.
Let’s explore how different feedstocks influence biochar performance below.
| Property | Rice Husk | Sugarcane Bagasse | Wheat Straw | Cotton Stalk | Groundnut Shell | Corn Cob | Mixed Agri Residues | Coconut Shell | Bamboo | Hardwood |
| Fixed Carbon | ★★★☆☆ | ★★★☆☆ | ★★★☆☆ | ★★★★☆ | ★★★★☆ | ★★★★☆ | ★★★☆☆ | ★★★★★ | ★★★★☆ | ★★★★★ |
| Surface Area | ★★★★☆ | ★★★☆☆ | ★★★☆☆ | ★★★★☆ | ★★★★☆ | ★★★★★ | ★★★☆☆ | ★★★★★ | ★★★★★ | ★★★★★ |
| Water Retention | ★★★★☆ | ★★★★☆ | ★★★☆☆ | ★★★★☆ | ★★★★☆ | ★★★★★ | ★★★☆☆ | ★★★★☆ | ★★★★☆ | ★★★★☆ |
| Porosity | ★★★★☆ | ★★★★☆ | ★★★☆☆ | ★★★★☆ | ★★★★☆ | ★★★★★ | ★★★☆☆ | ★★★★★ | ★★★★★ | ★★★★★ |
| Silica Content | ★★★★★ | ★☆☆☆☆ | ★★☆☆☆ | ★★☆☆☆ | ★☆☆☆☆ | ★☆☆☆☆ | ★★★☆☆ | ★☆☆☆☆ | ★☆☆☆☆ | ★☆☆☆☆ |
| Carbon Stability | ★★★☆☆ | ★★★☆☆ | ★★★☆☆ | ★★★★☆ | ★★★★☆ | ★★★★☆ | ★★★☆☆ | ★★★★★ | ★★★★★ | ★★★★★ |
| Ash Content | ★★★★★ | ★★★★☆ | ★★★★★ | ★★★☆☆ | ★★★☆☆ | ★★★☆☆ | ★★★★☆ | ★☆☆☆☆ | ★★☆☆☆ | ★☆☆☆☆ |
| Soil Longevity | ★★★☆☆ | ★★★☆☆ | ★★★☆☆ | ★★★★☆ | ★★★★☆ | ★★★★☆ | ★★★☆☆ | ★★★★★ | ★★★★★ | ★★★★★ |
Let’s explore how different processes influence biochar quality below.
Earth pit
kon tiki
Pyrolysis
| Parameter | Earth Pit | Kon-Tiki Kiln | Controlled Pyrolysis |
| Carbon Retention | ★★☆☆☆ | ★★★☆☆ | ★★★★★ |
| Process Control | ★☆☆☆☆ | ★★☆☆☆ | ★★★★★ |
| Temperature Uniformity | ★☆☆☆☆ | ★★☆☆☆ | ★★★★★ |
| Fixed Carbon | ★☆☆☆☆ | ★★★☆☆ | ★★★★★ |
| Surface Area | ★★☆☆☆ | ★★★☆☆ | ★★★★★ |
| Porosity | ★★☆☆☆ | ★★★☆☆ | ★★★★★ |
| Carbon Stability | ★☆☆☆☆ | ★★★☆☆ | ★★★★★ |
| Product Consistency | ★☆☆☆☆ | ★★★☆☆ | ★★★★★ |
| Risk of Ash Formation | ★★★★★ | ★★★★☆ | ★☆☆☆☆ |
| Smoke & Emissions | ★☆☆☆☆ | ★★★☆☆ | ★★★★★ |
| Scalability | ★★☆☆☆ | ★★★☆☆ | ★★★★★ |
| Suitable for Commercial Production | ★☆☆☆☆ | ★★★☆☆ | ★★★★★ |
Legend: For “Risk of Ash Formation,” more stars indicate a higher risk of producing excessive ash. For all other parameters, more stars indicate better performance.