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
Kensington 1949
[Report of the Medical Officer of Health for Kensington Borough]
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145°F, and not more than 150°F for at least 30 minutes and
immediately cooling to a temperature of not more than 50°F
or, (b) retaining at a temperature of not less than 161°F
for at least 15 seconds, followed by immediate cooling to a
temperature of not more than 50°F or, (c) retaining at such
temperature and for such period as may be specified by the
licensing authority with the approval of the Ministry.
The conditions applying to Sterilized Milk are that it
should be filtered or clarified, homogenized and heated
to a temperature of not less than 212°F. Bottles must be
sealed with an airtight seal and legibly and conspicuously
marked "Sterilized Milk".
Details of licences granted during 1949 are as follows:- •
| Principal | Supplementary | |
|---|---|---|
| Dealers licenses to sell Pasteurized milk | 89 | 12 |
| Dealers licenses to sell Sterilized milk | 99 | 14 |
With regard to sampling, the regulations state that
samples shall be transferred to an insulated container for
transport to the laboratory.
The following table shows the number of samples of processed milk taken during the year, together with results of examination:-
| Grade | No. of samples | Methylene blue test | Phosphatase test | ||
|---|---|---|---|---|---|
| Passed. | Failed. | Passed. | Failed | ||
| Tuberculin tested (Pasteurized) | 42 | 31 | 11 | 42 | Nil |
| Pasteurized | 37 | 30 | 7 | 37 | Nil |
| Sterilized | 6 | 5 | 1 | 6 | Nil |
| Heat treated + | 13 | 9 | 4 | 11 | 2 |
+ Note: The term Heat Treated will cease to be
used as and from 1st October, 1950.
Warning letters were sent to the vendors of the
unsatisfactory samples.
Milk & Dairies Regulations, 1949
Date of operation 1st October. 1949.
These regulations made under the Pood & Drugs (Milk and
Dairies) Act, 1944, revoke the Milk and Dairies Regulations,
1926/1943.
The Minister of Agriculture and Fisheries now becomes
responsible for the registration of dairy farms and of persons
carrying on, or proposing to carry on, the trade of dairy
farmer. The registration of all other premises and persons
dealing with milk, remains with the local authority.