One of the important factors that need to be taken into account for anaerobic digestion is the lipid content of the organic waste. Indeed, a large quantity of lipids enables more gas to be produced: this is known as the methane potential, however too large a quantity can also inhibit the process. Organic waste is often very heterogeneous and of different origins (e.g., agriculture, food industry and canteens), which is why it needs to be characterized before being recovered. Currently, the lipid content of waste is measured by the Soxhlet method, which is based on a chemical extraction coupled with a separation of the different constituents of the waste in order to analyze them. However, this method is long, taking several hours per sample, and requires a highly polluting petroleum-based chemical solvent.