London's Pulse: Medical Officer of Health reports 1848-1972

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Brentford and Chiswick 1959

[Report of the Medical Officer of Health for Brentford and Chiswick]

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Sampling

During the year 77 samples were taken for bacteriological examination and the results obtained are as under:-

GradeIce CreamIce LolliesCream Lollies
Satis-factoryDoubt-fulUnsatis-factorySatis-factoryDoubtfulUnsat is-factorySatis-factoryDoubt-fulUnsat is-factory
I7--2-----
II251----2--
III_7_____1_
IV--31-----1
Totals328312--211

In addition, one sample of 1iquid vanilla essence was taken and found to be
satisfactory,
The above table has been compiled from results graded according to the
following provisional grades set up by the Public Health Laboratory, Ealing, in
relation to ice cream testing -
Grade Classification Bacterial Count
I Below 500
II 500-20,000
III 20,000 - 100,000
IV If count is over 100,000 and/or Faecal Coli present
In the area served by Ealing Public Health Laboratory, the bacteriological
count which is carried out and the results of which are tabulated here, is much
more sensitive than the chemical tests used elsewhere. Although these chemical
tests are sufficient for statutory requirements, the fact that Dr. Hughes of the
Ealing Laboratory prefers the stricter control, is something for which the
Borough citizens can be grateful, as manufacturers of ice cream who have factories
in other areas or who send out their products sometimes find that ice
cream passed elsewhere as suitable for consumption because of the results of the
chemical test, are in a less happy position here because the bacteriological
findings lead to investigations and requests for improvement of equipment or
hygienic method.
Registration of Premises
Ice Cream
The total number of premises registered for the sale of ice cream in accordance
with Section 16, Food & Drugs Act, 1955, at the end of the year was as
under:-
Sale only 143
Manufacture and Sale 3
Storage only 1
Total 147
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