138 MISC. PUBLICATION 540, U. S. DEPT. OF AGRICULTURE 



A plant should consist of well-constructed buildings with concrete 

 floors capable of being satisfactorily cleaned, and free from crevices. 

 The floors should be sloped to drains that are tightly joined to the 

 sewerage system. All preparation and drying equipment that comes 



Motor 



PLAN 



«_ Press 





I v -- 

 K-— -> 

 I >< 

 K---> 



Conveyor 



« — Hot-Air Supply Ducts 

 Measuring Drum 



^S: 



CJ 



IX 



rs^ 



^ Press Cakes— ^ 



rz 



n ^5 — ^ 



v_y Conveyor \y 



^^ 



ELEVATION 



Ix 



Figuee 67. — Packaging press. 



into direct contact with food should be washed thoroughly at fre- 

 quent intervals. There are definite possibilities of a build-up of 

 microorganisms, such as bacteria, molds, and yeasts, that may con- 

 taminate and even spoil the material that is put through such a piece 

 of equipment. Stored raw material may contain fungus or bacterial 



