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58
Bacteriological Examinations.
149 samples of ice-cream were sent for bacteriological examination. The
gradings of those submitted to the methylene blue test were reported to be as
follows :—
Grade I 100
Grade II 32
Grade III 4
Grade IV 6
142
The samples graded in I and II of the methylene blue test are considered
satisfactory, and samples graded III or IV unsatisfactory.
Of the remaining 7 samples not submitted to the methylene blue test, 3 were
found to be unsatisfactory. 11 ice lollies were examined bacteriologically, and all
were reported to be satisfactory. 4 milky lollies were submitted for bacteriological
examination, 1 of which was found to contain faecal coli.
Difficulty was experienced in respect of ice-cream produced at one factory in
the Borough where samples, although reported as falling in Grades I and II, were
found to contain faecal coli, thus indicating that care was not being taken by the
employees in regard to personal hygiene. Other samples from the same factory
falling in Grades III and IV also had faecal coli. This situation was brought to
the notice of the Company concerned, and by co-operation with the Sanitary
Inspector, an ice-cream of satisfactory standard, without the presence of faecal
organisms, was ultimately produced.
Chemical Examinations.
107 samples of ice-cream and 5 ice lollies were submitted for chemical analysis,
none of which was reported to be unsatisfactory. The ice lollies were also reported
to be free from metallic contamination. From the following table, which gives
details of the respective fat contents of the ice-cream samples, it will be observed that
all were satisfactory, in fact the majority were well above standard :—-