A process for obtaining juices, oils and cakes in stable form by the pressing of fresh plant products is disclosed in which a depressor system in the amount of two to two-and-a-half times the quantity of water contained in the product to be pressed is added to a quantity of crushed product. The depressor system is a mixture of dextrose, saccharose and salt in a proportion by weight of dextrose to saccharose of three times and sugars to salt between seven and seven-and-a-half times. The whole mixture is subjected to exhaustive crushing action to obtain a puree and the puree is then pressed to obtain the juices, oils and cakes in stable form.