Apparatus for classic, manual extraction using the Soxhlet method. Tried and test C. Gerhardt quality for determining the fat content in food and feeds by means of solid/liquid extraction using an appropriate solvent. Serial heating unit with 6 individually adjustable heaters. With interchangeable top moulds, airbath inserts, support rods and mains cable. The cooling water supply system, Soxhlet glass parts and holders for fastening the glass parts to the support rods have to be ordered separately.