# The Dairy Products (Hygiene) Regulations 1995, Paragraph 1


Thermised milk shall:
(a) be obtained from raw milk and where thermisation of such raw milk has not commenced within 36 hours of its acceptance at the processing establishment, it shall have a plate count at 30°C prior to thermisation which does not exceed 300,000 per ml in the case of cows' milk;
(b) be obtained by the heating of raw milk for at least 15 seconds at a temperature between 57°C and 68°C such that after completion of the heating process the milk shows a positive reaction to the phosphatase test, using the method of analysis specified in paragraph 2 of Schedule 11; and
(c) have a plate count at 30°C equal to or less than 100,000 per ml before heat-treatment if it is used to produce pasteurised, UHT or sterilised milk.

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Source: https://www.legislation.gov.uk/uksi/1995/1086/schedule/5/part/II/paragraph/1 (the official version)
Page: https://openlegislation.uk/dairy-products-hygiene-regulations-1995/schedule-5/part-II/paragraph-1
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.