The wet process First the fresh fruit is pulped by a pulping machine. Some pulp still clings to the coffee, however, and this residue is removed by fermentation in tanks. The few remaining traces of pulp are then removed by washing. The coffee seeds are then dried to a moisture content of about 12 per cent either by exposure to the sun or by hot-air driers. If dried in the sun, they must be turned by hand several times a day for even drying.