UNITED STATES DEPARTMENT OF AGRICULTURE 
1 BULLETIN No. 663 
m/S? Contribution from the Bureau of Chemistry iLy 1 
S\J9*4&L CARL L. ALSBERG, Chief J&?' < ^L~ 
Washington, D. C. 
PROFESSIONAL PAPER 
May 27, 1918 
THE INSTALLATION AND EQUIPMENT OF AN 
EGG-BREAKING PLANT. 
By M. K.Jenkins, Assistant Bacteriologist, prepared under the direction of M. E. 
Pennington, Chief, Food Research Laboratory. 
CONTENTS. 
Purpose of the investigation 
Construction and arrangement of rooms 
Transfer openings and conveyors 
Ventilation 
Page. 
1 
2 
4 
6 
Page 
Equipment of breaking and sterilizing rooms . 7 
Outfit list 7 
Breaking room equipment 8 
Sterilizing room equipment 20 
Conclusions 24 
PURPOSE OF THE INVESTIGATION. 
To assist egg breakers to select effective apparatus and to arrange 
their plants to handle liquid egg in a sanitary manner and with 
maximum economy of space and labor is the purpose of this bulletin. 
The essentials for successful egg breaking are sanitary quarters, 
excellent lighting, proper ventilation, well-designed apparatus, 
facilities for quick freezing of liquid egg, and, of course, trained 
operatives. 
The thoroughly modern plant must provide a chill room for the 
eggs in the shell, a chilled candling room, a refrigerated breaking 
room in which the egg contents are removed from the shell, a room 
in which to wash and sterilize apparatus used in breaking, and a sharp 
freezer for the quick freezing of the liquid egg and its storage. Econ- 
omy in handling eggs demands that proper space be allotted to the 
several departments, and that each be so located with reference to 
the others that unnecessary walking and trucking are avoided. The 
egg-breaking room and that for cleansing the apparatus are of pe- 
culiar importance. On these subjects this bulletin gives conclu- 
sions based upon a special study of frozen and dried eggs. It rec- 
ommends certain improvements in the distribution of space, and 
discusses new equipment devised to meet special requirements of 
the industry. To assist the egg breaker who wishes to improve his 
44293°— 18— Bull. 663 1 
