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Ice Cream.
Fifteen premises are registered for the manufacture of ice
cream but only two of these are now actually used for this purpose.
A further 95 premises are registered for the sale of ice
cream; in the majority of cases only wrapped ice cream is sold.
The methods of heat treatment laid down in the Ice Cream
(Heat Treatment) Regulations are used by both manufacturers in
the district.
Sixty samples of ice cream were obtained and taken to the
Public Health Laboratory, Ealing, for bacteriological examinat
ion. The use of the special standard devised by the Public
Health Laboratory, Ealing, has been continued and is, for convenience,
set out below:-
Grade
I
II
III
IV
Count
below 500
500 - 10,000
10,000 - 100,000
Over 100,000
Faecal Coli
Nil
Nil
Nil
or present
The grading of samples taken was as follows: -
Grade I
Grade II
Grade III
Grade IV
15 or 27%
24 or 43%
7 or 12%
10 or 18%
These results are better than last year. The proportion
of samples falling in Grades I and II is 70%, compared with 64%
last year and on the very high standard by which these samples
are graded this can be regarded as reasonably satisfactory and,
at the same time, as a challenge to obtain even better results.
No attempt has been made to produce more satisfactory figures
by taking samples from sources of known reliability; on the
contrary, attention has been concentrated on manufacturers whose
products have been found to be of inconsistent bacteriological
quality.
Of the 17 samples in grades III and IV only three were
manufactured in the district.
All vehicles from which unwrapped ice cream is sold are
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