The dimensions of storey box as presented in Fig 3. Aeration of this box type passed through the hole. The holes have a diameter of 1 cm and the spacing between holes of 10 cm. There are nine holes in every sides of the box. This hole function as the place of turnover of air and as the discharge of waste products of fermentation. The disadvantages of the storey box is requires a lot of materials and space, but it provide more reversal, so the cocoa beans fermentation become complete.