In this work, a study about solute continuous extraction from vegetable matrix is undertaken. An industrial apparatus is used and the problems are to identify information to be acquired in order to process implementation. To this end, a batch study was carried out to obtain the extraction kinetics, as well as a study of the matter behaviour under pressure and a study of raw plant transport. Finally, to couple these elements makes it possible to represent the extraction yields according to time in the apparatus. A methodology for the change from batch to continuous extractor based on laboratory tests is proposed.