A process of production of
plant extracts, especially for the cosmetic products, according to which
plant substances are blended, the
plant substance blend is phase-extracted in the
filtration bags in such manner, that the final extract is obtained by extraction of a
filtration bag with water extract of the other
filtration bag and the extract is subsequently pasteurized and preserved. The phase extraction including at least one operational phase in which one filtration bag containing the leached plant substances blend in one extraction vessel is extracted with water forming the partial extract and the other filtration bag containing a new plant substances blend is leached with the partial extract in the other extraction vessel forming the final extract. The device for execution of a process of production of plant extracts includes at least one basic circuit in which an extraction vessel containing a filtration bag, a circulation pump and a
heat exchanger, whereas the filtration bag, the circulation pump and the
heat exchanger being arranged in series; the device including a
water reservoir with
water supply and an
input device for pH value adjustment and a final product reservoir; the
water reservoir being connectable to a circuit and the said circuit being connectable to the final product reservoir and the said circuits being connectable mutually.