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 Hammersmith Borough]
This page requires JavaScript
Bacteriological Examination of Food The following samples were submitted for bacteriological examination to the Public Health Laboratory Service:-
Ice Cream | 30 |
Milk | 54 |
Ice Cream
Ice Cream is manufactured at two premises in the Borough, one of which is a large wholesale
manufacturing and distributing company.
During the year 30 samples of ice cream were taken for bacteriological examination and the
Methylene Blue test by the Public Health Laboratory Service. The Methylene Blue test is recommended
by the Ministry of Health as a guide for ascertaining the bacteriological cleanliness
of ice cream; the time taken to decolourise Methylene Blue being recorded and the samples graded
as follows:-
Provisional Grade
Time taken to decolourise Methylene Blue
1
2
3
4
4½ hours or more
2½ hours or more
½to 2 hours
Less than ½ hour
The 30 samples were placed in the following grades:-
10 were within Grade 1
9 were within Grade 2
1 was within Grade 3
4 were within Grade 4
No results were received in respect of 6 samples owing to an accident in the laboratories.
Premises registered under Section 16, Food and Drugs Act.
Ice Cream manufacturers | 2 |
Ice cream sales only | 2 |
Confectioners (sweetshops) selling ice cream | 211 |
Restaurants (selling ice cream for consumption off the premises) | 20 |
Grocers selling ice cream | 126 |
Fruiterers and greengrocers selling ice cream | 13 |
Off licence premises selling ice cream | 11 |
Bakers selling ice cream | 2 |
Hairdressers selling ice cream | 2 |
Butchers preserving meat and/or manufacturing sausages | 68 |
Grocers and provision dealers preserving meat | 29 |
Caterers preserving meat | 4 |
Fishmongers curing fish | 21 |
Food factories manufacturing sausages and preserved food | 5 |
Total | 516 |