Its actually a bit different, we ferment ours anaerobically, heres the description of the process if youre interested.
Process:
Our Wine coffee is processed by washing selected cherry coffees, dried in the sun for two hours then put in a bag and tightly closed so as to produce anaerobic conditions for fermentation. Cherries are left to ferment for a week, opened, dried for four hours and then made to ferment again for six days and less for each subsequent process until the seeds in the cherries reach a moisture content of 12-13%. The dried coffee cherries are then peeled and sorted according to their respective grades.