London's Pulse: Medical Officer of Health reports 1848-1972
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Hints from the Health Department. Leaflet from the archive of the Society of Medical Officers of Health. Credit: Wellcome Collection, London
Malden and Coombe 1958
[Report of the Medical Officer of Health for Malden & Coombe]
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21 .
MILK.
During the year the following licences were issued under the
Milk (Special Designations)(Raw Milk) Regulations, 1949, or the Milk
(Special Designations)(Pasteurised and Sterilised Milk) Regulations,
1949 - 1954.
Dealers.
Tuberculin tested 9
Pasteurised 10
Sterilised 13
Supplementary.
Tuberculin tested 10
Pasteurised 10
Sterilised 11
The difference between a dealer's and a supplementary licence is
that, if a dairyman has premises in a local government area where he
retails milk he is issued with a dealer's licence. Should he retail
milk in another area he must obtain a supplementary licence from the
Council of that area.
DETAILS OP MILK TESTING.
| CLASS OP MILK. | NUMBER OP SAMPLES TESTED | APPROPRIATE TESTS | NUMBER OP SAMPLES | |
|---|---|---|---|---|
| PASSED | FAILED | |||
| Pasteurised | 66 | Phosphatase | 66 | - |
| Methylene blue | 66 | - | ||
| Sterilised | 5 | Turbidity | 5 | - |
| Tuberculin tested (Pasteurised) | 47 | Phosphatase | 47 | - |
| Methylene blue | 47 | - | ||
| Tuberculin tested (Farm Bottled) | 3 | Biological | 3 | - |
The purpose of the phosphatase and methylene blue tests is to
determine respectively whether or not the milk has been adequately heat
treated and whether it is of good keeping quality.
The turbidity test for sterilised milk is to determine whether
or not the milk has been adequately sterilised.