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
Walthamstow 1931
[Report of the Medical Officer of Health for Walthamstow]
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| Date. | Grade of Milk. | Total Bacteria per c.c. | Bacillus Coli absent in. | Presence of Tubercle Bacillus (biological test). | Remarks. |
|---|---|---|---|---|---|
| 28.5.31 | Pasteurised | 25,000 | 1.0 c.c. | No Test | Satisfactory. |
| „ | „ | 31,000 | 0.1 c.c. | „ | „ |
| 18.6.31 | Grade A. (T.T.) | 11,000 | 0.01 c.c. | „ | „ |
| „ | Pasteurised | 11,500 | 1.0 c.c. | „ | „ |
| ,, | Raw | 179,000 | 0.0001 c.c. | „ | „ |
| 7.7.31 | Pasteurised | 9,300 | Not stated | „ | „ |
| „ | „ | 11,000 | „ | „ | „ |
| „ | „ | 300,000 | „ | „ | Unsatisfactory. |
| „ | „ | 3,200 | „ | „ | Satisfactory. |
| 23.7.31 | „ | 58,000 | „ | „ | „ |
| „ | „ | 13,600 | „ | „ | „ |
| ,, | Grade A. | 91,000 | 0.001 c.c. | „ | Unsatisfactory. |
| „ | Pasteurised | 54,000 | Not stated | „ | Satisfactory. |
| 27.8.31 | Grade A. (T.T.) | 9,800 | 0.01 c.c. | „ | „ |
| „ | Pasteurised | 32,000 | 1.0 c.c. | „ | „ |
| „ | Grade A. (T.T.) | 16,000 | 0.01 c.c. | „ | „ |
| „ | Pasteurised | 14,900 | 1.0 c.c. | „ | „ |
| 29.10.31 | „ | 6,400 | Not stated | „ | „ |
| „ | „ | 4,900 | „ | „ | „ |
| „ | „ | 3,900 | „ | Absent | „ |
| „ | Raw | 36,000 | „ | „ | „ |
| „ | „ | 6,100 | „ | „ | „ |
| 14.11.31 | Pasteurised | 180,000 | „ | No test | Unsatisfactory. |
| „ | ,, | 320,000 | „ | „ | „ |
| 3.12.31 | Grade A. (T.T.) | 13,800 | 0.01 c.c. | Absent | Satisfactory. |
| „ | „ „ | 20,300 | 0.01 c.c. | „ | „ |
| „ | Pasteurised | 9.400 | 1.0 c.c. | No test | „ |
| 22.12.31 | Raw | 100 | 1.0 c.c. | Absent | „ |
| „ | „ | 120 | 1.0 c.c. | „ | „ |
| 29.12.31 | „ | — | — | „ | „ |
| " | Pasteurised | — | — | „ | „ |
Eight samples of Ice Cream were analysed with one unsatisfactory
result. The manufacturer was warned and his premises were
improved and cleansed with the result that later samples proved
satisfactory.
The following were the analyses of the samples:—
| Date. | Total Bacteria per c.c. | Remarks. |
|---|---|---|
| 23.7.31 | 7,200,000 | Excessive number of bacteria; not a clean product. |
| „ | 150,000 | Bacterial count not excessive, but less than 100,000 can readily be obtained. |
| „ | 170,000 | „ „ „ |
| „ | 15,800 | Satisfactory product. |
| „ | 23,000 | „ „ |
| 27.8.31 | 31,000 | „ „ |
| „ | 45,000 | „ „ |
| „ | 210,000 | Bacterial count not excessive, but would be too high for a pasteurised product. |