Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
[Report of the Medical Officer of Health for Hayes]
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shire, their plant being at Eracknell. In reply to my request
for their observations on the complaint the firm stated that the
deposited matter was naturally present in the milk, but the
Public Analyst's Certificate does not support this. Literature
on the subject also confirms that attention to securing a clean
milk supply in the first place and closer supervision of sanitation
are both important points in overcoming the trouble.
Throughout their correspondence with me the firm have placed
great emphasis on the good state of their dairy and as it is
comparatively new this can be taken for granted. It is however
largely irrelevant to the present issue. As I have pointed out,
this phenomenon can be minimised by strict attention to conditions
on the farm, but if present when the milk is delivered
to the processing plant can be eliminated by the clarifying
process, amethod which is not used by this particular firm.
It has not been necessary to take any action under Article
20 of the Milk and Dairies regulations, 1959, to prohibit the
sale of milk.
Ice Cream.
Twenty premises are registered for the manufacture of ice
cream but only five of these are now actually used for this
purpose. A further 111 premises are registered for the sale of
ice cream, in the majority of cases only wrapped ice cream is
sold.
The requirements of the Ice Cream (Heat Treatment)
Regulations are complied with by all manufacturers in the
district.
Sixty samples of ice cream were obtained and taken to the
Public Health Laboratory, Ealing, for bacteriological examination.
The use of the special standard devised by the Public
Health Laboratory, Ealing, has been continued and is, for convenience,
set out as follows:-
Grade Count Faecal Coli
I Below 500 Nil
II 500 - 10,000 Nil
III 10,000-100,000 Nil
IV over 100,000 or present
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