If she learns
that the conditions in the dairy that is supplying her with milk are not
what they should be, she should try to obtain milk from some other
source. Of course, she should remember that milk of the best and
cleanest quality is the highest in price, because of the increased cost
of production; but it is usually advisable to pay the higher price,
especially if children are to be fed, because cheap milk is liable to be
unsafe, at least for any purpose that will require it to be served
without cooking. Should the income not allow the best quality of milk to
be used for all purposes, a cheaper grade can be used for cooking, but
it is always economical to purchase the best quality when this food is
to be used as a beverage.
[Illustration: FIG. 5]
49. In the next place, the housewife should purchase milk from a dealer
who delivers cold milk, because, as has been mentioned, bacteria
multiply rapidly in warm milk. She should also try to obtain milk put up
in bottles, for such milk has advantages over milk dipped from a can in
that it does not have the same chance to become dirty and it affords a
greater opportunity to secure accurate measurement. The kind of caps
used on milk bottles should also be observed. Caps that have to be pried
out with a knife or a similar utensil are not nearly so satisfactory as
those shown in Fig. 5 (_a_), which have small tabs _a_ that permit the
cap to be lifted out. In addition to the caps, which serve to keep dirt
out of the milk and permit it to be delivered without being spilled,
some dealers use covers like that shown in (_b_).
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