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47
In 22 cases where the fat content subsequently proved to be four per cent.
or over observations made at the time of purchasing the sample showed that in
16 instances the milk was stirred with a hand measure before serving. In one
case only a plunger was used; in one case (street sample) the agent reported that
the milk was not stirred at all prior to sale; in three cases the pans from which
the milk was served could not be seen by the purchasers; and in the remaining
case the counterpan was filled from a churn at the time of purchase of the sample
and so was presumably well mixed. It is probable that even distribution of the milk
fat is not secured by casual mixing with a hand measure; the use of efficient
plungers would secure this end; on the other hand, where there is reason to believe
milk is properly plunged an analysis has shown the presence of over 4 per cent.
of fat.
Of the 22 samples referred to above ten were purchased at dairies or milk
shops, eight at general shops, two from street vendors, and two at restaurants.
But to my knowledge analyses of the contents of individual churns show
(hat the percentage of fat in very many is considerably above 3 per cent.; in some
the fat contents of the milk were over 4 per cent.