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
Surbiton 1960
[Report of the Medical Officer of Health for Surbiton]
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MILK SUPPLY (Cont.)
(ii) Milk (Special Designation) (Raw Milk)
Regulations 1949 - 1954.
Milk (Special Designation) (Pasteurised
and Sterilised Milk) Regulations, 1949 - 1 953.
Dealers licences to sell designated milk
were granted as follows:-
Pasteurised milk 31
" " (supplementary) 9
Tuberculin Tested milk 22
" " " (supplementary) 8
Sterilised milk 18
(supplementary) 8
(iii) Eighty-six samples of milk were taken during the year and submitted to the following tests
| Turbidity Test | T.B. Biological Test | Methylene Blue Test | Phosphatase Test | |
|---|---|---|---|---|
| T.T. (C.I.)(Farm Bottled) | - | 3 | 5 | - |
| Pasteurised | - | - | 35 | 35 |
| T.T. Pasteurised | - | - | 26 | 26 |
| Sterilised | 6 | - | - | - |
| T.T.(Raw Milk) | - | 11 | - | - |
The phosphatase test indicates that pasteurisation has been
properly carried out; the methylene blue test is used to determine
cleanliness and keeping quality; the turbidity test is a check on
sterilisation and the T.B. test is for the purpose of detecting
tubercle bacilli. The T.T. (Raw Milk) samples for T.B. test were
taken at farms in the Borough.
All samples conformed to the required standard with the
exception of one T.T. (Farm Bottled), which failed the methylene
blue test.
This was taken up with the retailing company so that they
could get in touch with their suppliers. A subsequent sample
proved satisfactory. Very little of this grade of milk is now
sold here.
Milk & Dairies (General) Regulations. 1959 ~ Dirty Milk Bottle:
A complaint was made by a local resident concerning the dirty
condition of a milk bottle delivered to his house. The observations j
of the suppliers were submitted. The Council decided to send
them a warning letter.
42.