62 The Cultivation and Preparation of Coffee 



regard to the pulping is the adjustment of the 

 breast, referring to the cylindrical pulpers, and 

 to the cheeks, with reference to disc pulpers. 

 In the old style of coffee pulpers (still offered by 

 some manufacturers), referring to cylindrical 

 type, the adjustment of the breast was not an 

 easy matter, the surface of the breast having 

 to be as near as possible to the rotating drum 

 without actually touching it. There was no 

 means to prevent the breast getting too close 

 to the barrel or drum, and perhaps touching 

 the drum at some point and allowing too much 

 clearance at others. If there is too much 

 clearance between the upper part of the breast 

 and the rotating drum it will be found that a 

 considerable amount of pulp would come out 

 together with the pulped coffee, and if the 

 lower part of the breast is too wide apart with 

 relation to the drum, a considerable amount of 

 good coffee would come out together with the 

 pulp by the back shoot, and all this coffee, 

 unless it can be noticed in proper time, would 

 be lost. Further, if one end of the breast is 

 nearer to the drum than the other, one will 

 observe that some of the coffee would come out 

 only partially pulped. Unfortunately manu- 

 facturers of coffee machinery very seldom send 

 along with the machines they supply working 

 instructions, and the planter abroad, with 



