22 
BULLETIN 663, U. S. DEPARTMENT OF AGRICULTURE. 
level position by means of legs soldered to the drain itself or by means 
of solder or metal posts in the corners of the draining rack. This 
perforated plate permits the drippings from the utensils to drain in 
the sink. 
Rinsers. — It is important that after washing the utensils they be 
rinsed in clean water before sterilization. This can best be accom- 
plished by mechanical rinsers (figs. 21, 22, and 23). 
Rinsers of the percussion valve type, obtainable from plumbing 
supply firms, may be used for rinsing cups (fig. 22). A nozzle 
threaded to attach to a water pipe and operated by a pedal valve 
located on the floor may be used for rinsing large utensils (fig. 23). 
Bottle rinsers, which 
may be purchased 
from bottle ma- 
chinery firms, are also 
used, and are much 
less expensive than 
the percussion valve 
type. By the attach- 
ment of a perforated 
metal plate about 1 
foot in diameter, this 
rinser may be used for 
both cups and larger 
utensils. Each sink 
should be equipped 
with a rinser. 
In plants with eight 
breakers or more, it 
is economical to install a mechanically rotating brush for washing 
cups. Bottle-washing machines, driven by a quarter horsepower 
motor, may be purchased for this purpose from dairy-supply firms. 
Fig. 23.— Nozzle lor rinsing pails and cans (in perspective and cross 
• section). 
STEAM STERILIZER. 
(Fig. 24.) 
The steam sterilizer is an essential part of the equipment of a 
sterilizing room. Bottle sterilizers suitable for the purpose may be 
purchased from firms selling dairy supplies. It is more economical 
of steam and time for plants with more than eight breakers to have 
two small sterilizers rather than one large one, because one may be 
operated while the other is being filled and less steam is used when 
small lots of equipment are sterilized. In smaller plants one sterilizer 
will be sufficient. In plants where one or two girls are' breaking, or 
in houses where only leaking eggs are opened, a small sterilizer used 
on a gas stove (fig. 25) may be substituted. This sterilizer, which 
