# The Milk (Special Designation) Regulations 1989, Paragraph 4: A. Conditions applicable when pasteurised milk is produced from raw milk or from bulk milk beat treated for transportation


(1) Such indicating and recording thermometers as the licensing authority shall reasonably consider necessary shall be installed in suitable places in the apparatus in which the milk is pasteurised so as to indicate the temperatures at which the milk is retained and to which the milk is cooled.
(2) The records of recording thermometers shall be marked with graduations adequately spaced to give clear readings, and they shall be dated and preserved for a period of not less than three months.

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Source: https://www.legislation.gov.uk/uksi/1989/2383/schedule/4/part/I/paragraph/4 (the official version)
Page: https://openlegislation.uk/milk-special-designation-regulations-1989/schedule-4/part-I/paragraph-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.