76 The Cultivation and Preparation of Coffee 



as soon as it is generated, so no loss of heat 

 efficiency can be experienced in this dryer. 



Now that the heat required for drying 

 machines can be generated by the consumption 

 of wood, coffee husks, oil, and even electricity, 

 no planter of any importance should be 

 without a dryer. I understand that there are 

 coffee-drying machines of from 500 Ibs. 

 capacity up to 28,000 Ibs. of wet parchment 

 coffee per charge, so this range of sizes will 

 no doubt meet the requirements of from the 

 smallest to the largest planter. 



In some up-to-date and well-fitted planta- 

 tions, as the coffee comes out of the washing 

 machine or washing tank it is passed through 

 a centrifugal machine in order to thoroughly 

 drain and extract from the parchment as 

 much water as possible. It is claimed that 

 by doing so 15 per cent, to 20 per cent, 

 of the damp in the drying operation is 

 saved. Of course this does not apply to 

 the Okrassa Dryer, since the inventor 

 claims that coffee can be put into the drying 

 drum after the coffee has been ordinarily 

 drained, and it is dried in 24 hours, as already 

 mentioned. 



