London's Pulse: Medical Officer of Health reports 1848-1972

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Merton and Morden 1963

[Report of the Medical Officer of Health for Merton & Morden]

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appraisal of the adulteration and sophistication possible in order to prepare
a sampling programme giving adequate coverage without unnecessary
expense.
A summary of the fat and non-fatty solids in the 21 samples of milk
taken for chemical analysis is given by the following tables:-

Solids not fat (legal standard is 8.5%)

Less than 8.58.68.78.88.99.0Total
-7823121

Milk fat (legal standard is 3% or Channel Island milk 4%)

Less than 3.03.33.43.53.63.73.83.94.34.44.7Total
-135214112121

Ice Cream.
At the end of the year, there were 136 registered retailers and 3
itinerant vendors. Most of these obtained their supplies from one or
more of eight manufacturers but the making of soft ice cream on mobile
vehicles continued to increase in extent. This method is more open to
public health hazards and stricter control is necessary. 12 samples
were obtained and submitted for bacteriological examination with the
following results:-
11 samples failed to decolourise the Methylene Blue test
dye within 4 hours and placed in Provisional Grade 1.
1 sample decolourised the dye in 2 hours and ranked as Grade 3.
No chemical examinations were made during the year.
32