10 BULLETIN 1095, U. S. DEPARTMENT OF AGRICULTURE. 
larger than where the bottles pass directly from the delivery wagons — 
to the bottle washer. 
A clean bottle-storage room is of considerable advantage for 
storing bottles after washing. This room should be located between 
the bottle-washing room and the bottle-fillng room. In this room 
the bottles are allowed to remain after washing until cooled, when | 
they may be filled. It is important that there be no congestion either 
at the milk-receiving door or the door where the empty bottles are — 
received. Therefore, these two doors should be widely separated. 
PROCESSING ROOM. 
The milk-processing room may contain the pasteurizing equipment 
and the bottle-filling apparatus, or the bottle filling may be done in a 
separate room. Where a bottle-storage room is not provided there 
must be space in the filling room for the empty washed bottles. A 
convenient arrangement may be accomplished by having the pasteur- 
izing equipment on a half-story or raised floor, so that the milk may 
flow from it by gravity through the cooler to the bottle-filling appa- 
ratus. On the fioor above should be placed the milk-storage vats. 
Gravity flow of milk is preferable to the use of milk pumps. The 
only milk pump required with an elevated-floor arrangement is one 
to raise the milk from the receiving tank on the ground floor to 
the storage tank above. 
MILK-STORAGE ROOM. 
A well-insulated milk-storage room is necessary in all milk plants. 
This room should be insulated with about 4 inches of cork, with ce- 
ment on the inside and outside. It should be located so that the milk 
may pass directly into it from the bottling room and, at the same 
time, be convenient for loading the delivery wagons. ‘The door 
should swing outward, in order to save refrigeration space, and it is 
well to have the room as nearly square as possible. The size of the 
room will depend on the quantity of milk to be stored. There should — 
be enough room to store conveniently all the milk of one day’s run © 
with convenient working space. ; 
The following are the approximate sizes of milk-storage rooms re- 
quired for plants handling various quantities of bottled milk. 
Quantity | 

of bertled Size of room. 
handled. 
Gallons. Feet. 
300 Sby 8 
500 10 by 10 
1,000 | 12 by 15 
2, 000 18 by 20 
4000 | 24 by 30 

