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(b) THE MILK (SPECIAL DESIGNATION) (RAW MILK) REGULATIONS 1949-1954. "Tuber
culin Tested" is the only designation now permitted by these Regulations.
Producers' licences under the Regulations are granted by the Minister of
Agriculture, Fisheries and Pood, and Dealers' licences by the local authority.
The following licences were issued by the Borough Council: -
Dealer's Licence - Tuberculin Tested Milk 42
Dealer's Supplementary Licence - Tuberculin Tested Milk 21
During the year nineteen samples of raw milk were submitted for biological
examination for tubercle bacilli and all were negative.
(c) MILK (SPECIAL DESIGNATION) (PASTEURISED AND STERILISED MILK) REGULATIONS
1949-1953. Milk sold under the special designation "pasteurised" must be
treated by one of the three following methods:-
(i) heated to a temperature of not less than 145°F. and not more than
150op., held at that temperature for at least 30 minutes, and immediately
cooled to a temperature of not more than 50°F, or
(ii) heated to a temperature of not less than 161°F.„ held at that tem
perature for at least 15 seconds and immediately cooled to a tempera
ture of not more than 50°F., or
(iii) heated to such temperature and retained thereat for such period as
may be specified by the licensing authority with the approval of the
Minister of Pood.
"Pasteurised" milk is required to comply with the Phosphatase Test for
adequate heat treatment and with the Methylene Blue Test for bacterial clean
liness.
The following samples were submitted to the Public Health Laboratory
Service for tests under these Regulations
Pasteurised milk Phosphatase Test 436
Methylene Blue Test 436
Tuberculin Tested (Pasteurised) Milk Phosphatase Test 104
Methylene Blue Test 104
Tuberculin Tested Milk Methylene Blue Test 1
Two samples of Tuberculin Tested (Pasteurised) milk and three samples of
Pasteurised milk failed to comply with the requirements of the Methylene blue
Test, but in each case the test was void owing to the atmospheric shade temperature
on the day of sampling exceeding 65°F,
One sample failed to satisfy the Phosphatase Test but a follow-up sample
taken proved satisfactory
"Sterilised" milk is milk which has been filtered or clarified and homogenized
and heated to and retained at a temperature of not less than 212°P for
such period as to ensure that it will comply with the prescribed turbidity test
the 51 samples submitted for examination satisfied this test-
Licences authorising the use of special designations in the case of
pasteurising and sterilising establishments are issued by Pood and Drugs
Authorities, and in the case of dealers' principal and supplementary licences
by local authorities. The following licences were issued by the borough
council:-
Pasteuriser's Licence 1
Steriliser's Licence 1
Dealer's Licence -
Tuberculin Tested(Pasteurised)Milk 43
Pasteurised Milk 148
Sterilised Milk 221
Dealer" s Supplementary Licence-
Tuberculin Tested(Pasteurised) Milk 19
Pasteurised Milk 27
Sterilised Milk 30