Outlines of dairy bacteriology, 10th edition: A concise manual for the use of students in dairyingRussell, H. L. (Harry Luman)
Science
Outlines of dairy bacteriology, 10th edition: A concise manual for the use of students in dairying
Russell, H. L. (Harry Luman)
Dairy microbiology
Milk plants are now generally equipped for the rapid and economical
handling of large quantities of milk in a most sanitary manner. The
bottles as they are returned from the consumer are washed in a
continuously-acting automatic washer which washes, rinses and
sterilizes the bottles without their being removed from the cases in
which they are carried on the wagons. These machines are effective,
if not run at too rapid a rate, so that the bottles are not exposed
for a sufficiently long period of time to sterilize them. The
bottles are then filled and the paper caps inserted by machinery.
The caps can now be obtained from the manufacturers in sealed
tubes in which they have been sterilized so that the contamination
from this source is avoided. The shipping cans are washed and
sterilized with live steam, and in many plants are thoroughly dried,
by passing hot air into them. Under these conditions they then reach
the farmer with none of the musty and disagreeable odor that
frequently is present when the can contains a small quantity of
water, condensed from steam.
The top of the milk bottle over which the milk is poured is exposed
to contamination from the hands of the deliveryman. Trouble from
this source can be avoided if the consumer cleans the lip of the
bottle before removing the cap. The better grades of milk are
dispensed in bottles, the top of which is protected by an additional
cover of paper or tin foil which reaches to the neck of the bottle
and is held in place by a crimped metal band.
=Milk supply of the small cities.= It is true that the quality of milk
supplied to the large cities by the great milk companies is
generally much superior to that sold in the smaller cities and
villages. Many of the smaller places are however, attempting in
various ways to improve their supply. It is evident that methods
will be successful here that can not be employed in the larger
places. A detailed and careful farm inspection by a tactful, capable
inspector, coupled with proper publicity will do much to improve
conditions. The publication of the scores of the different farms,
and the demonstration of the sediment test as applied to their
product attracts favorable attention to the good dairies and
unfavorable attention to the poor. This usually has an effect on
the trade sufficient to cause the negligent producer and dealer to
improve.
It is also becoming recognized that high grade milk can be produced
with very simple equipment. In fact the small farm is often more
successful in producing high grade milk than is the large farm on
which the work must be done by hired help for here the personality
of the owner can not make itself felt as where the producer is doing
a portion of the work about the barn and dairy himself. It is
becoming more and more evident that the chief factor in the
production of clean milk is the personality of the producer; he
should be one who gets enjoyment out of his clean stables and cows
and his high grade product.
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