Hemp's reputation runs toward fibre and food. A 2024 study in Science and Technology for Energy Transition suggests it deserves a seat at the fuel table too.

Researchers Yazilitaş, Yilbaşi and Yeşilyurt converted hempseed oil into biodiesel through alkaline transesterification — methanol, a potassium hydroxide catalyst, controlled heat. Under optimised lab conditions, the reaction converted 95.24% of the oil into usable biodiesel. The resulting fuel's density, viscosity, cold-flow behaviour and flash point (above 120°C) landed close to EN 14214 — the European standard conventional biodiesel is measured against.

It isn't a finished commercial case. This was lab-scale work, one feedstock batch, one set of optimised conditions — not a factory floor. But it's a data point worth sitting with: a crop already grown for fibre and grain can, under the right process, yield a fuel that behaves like fuel.

The question worth asking isn't whether hemp can become biodiesel. It's who builds the plant that proves it at scale.