Processes (200,300,500) and apparatus for processing plant material residue (141, 198, 530) remaining after primary juice has been extracted from the plant material are described. In one implementation the process (200) comprises using a diffusion extractor (205) to extract a liquid portion (211) from the plant material residue (141). The liquid portion (211) is then fractioned using a number of fractioning devices (225, 230, 245, 260, 272, 274) to produce secondary juice (275). The secondary juice (275) is then added to the primary juice.