The Waste Product the Palm Oil Mill – The approximate percentage composition of bunches processed in palm oil mills is given in Table 1. The amount of waste products is therefore dependent upon the type of bunch. Moreover, the extraction process affects the amount of non-oily solids and fibre which can be recovered or used. In the wet process, two-thirds of the fibre is washed away in water, in the continuous pressing process, one-third of it finds its way into the crude oil. Finally, in the centrifugal extraction technique or by manual press method, only very little of the fibre are removed.