The fuel is produced through a hydrotreating process, which involves high pressure and temperature to convert the raw materials into a high-quality, clean-burning diesel alternative. This is a complex hydrotreatment process, which involves two main steps: hydrogenation and hydrocracking.

• Hydrogenation adds hydrogen to sustainable raw materials, such as waste oils and fats, removing oxygen from the molecules and converting them into a cleaner, more stable fuel.
• Hydrocracking breaks down large molecular chains into smaller ones, helping HVO to mimic the chemical structure of traditional diesel.

These processes result in a paraffinic hydrocarbon chain that is chemically very similar to fossil diesel but with significantly improved performance characteristics.