Biodiesel production involves converting organic materials, such as vegetable oils or animal fats, into a renewable fuel. This process typically uses a method called transesterification, where oils are mixed with an alcohol, usually methanol, and a catalyst to produce biodiesel and glycerin. The resulting biodiesel can be used in diesel engines, providing a cleaner alternative to traditional fossil fuels. The production of biodiesel can help reduce greenhouse gas emissions and reliance on non-renewable energy sources. Additionally, it can utilize waste products, such as used cooking oil, contributing to a more sustainable energy system.