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

Enfield 1966

[Report of the Medical Officer of Health for Enfield]

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Table: TABLE 36FOOD AND DRUGSBacteriological Examination of Ice-Cream Methylene Blue Test

TABLE 36

FOOD AND DRUGS

Bacteriological Examination of Ice-Cream Methylene Blue Test

VendorType of Ice-CreamResults
Grade
1234
Shop PremisesLoose or soft137——
Mobile TradersLoose or soft4211

Table: TABLE 37FOOD AND DRUGSBacteriological Examination of Milk

TABLE 37

FOOD AND DRUGS

Bacteriological Examination of Milk

1.Methylene Blue Test (for keeping quality)
DesignationNumber of SamplesResults
SatisfactoryVoidUnsatisfactory
Pasteurised170158 (92.94%)11 (6.47%)1 (0.59%)
2.Phosphatase Test (for efficiency of pasteurisation)
DesignationNumber of SamplesResults
SatisfactoryVoidUnsatisfactory
Pasteurised170170 (100%)——
3.Turbidity Test (for efficiency of sterilisation)
DesignationNumber of SamplesResults
SatisfactoryVoidUnsatisfactory
Sterilised9090 (100%)——
4.Colony Count (for efficiency of treatment)
DesignationNumber of SamplesResults
SatisfactoryVoidUnsatisfactory
Ultra heat treated87—1 (12.5%)