24 
BULLETIN t>63, U. S. DEPARTMENT OE AGRICULTURE. 
angle iron. The pressure of steam should be sufficient to maintain 
temperatures of 210° to 212° F. If there is not an available supply 
of steam, a boiler heated with coal or gas should be installed (Plate I). 
Gas boilers have been found very convenient for this purpose. 
CONCLUSIONS. 
An egg-breaking plant should have an insulated refrigerated 
chillroom, candling room, freezer, and breaking room. Adjoining 
the breaking room should be a room for the washing and sterilizing 
of utensils. 
Fig. 25.— Small steam sterilizer used on gas stove. (Reprint from Farmers' Bulletin 748.) 
The breaking and sterilizing rooms should have a plentiful supply 
of natural light. The walls and ceilings should be plastered and 
white enameled, and the floors should be concrete with trapped 
drains. In the partition between the two rooms a sliding window 
for the transfer of equipment should be built. 
The freezer should be equipped with shelves of brine piping, 
through which brine is circulated for freezing the cans of liquid egg. 
The candled eggs should be taken to the breaking room in metal 
