# The Quick-frozen Foodstuffs (Wales) Regulations 2007, Paragraph 2


For the purposes of paragraph 1—
(a) an authorised cryogenic medium is—
(i) air,
(ii) nitrogen, or
(iii) carbon dioxide;
and
(b) a permitted exception relating to the temperature of a food applies when—
(i) that food is kept within brief periods during transport (including local distribution) at a temperature warmer than −18°C but not warmer than −15°C, or
(ii) that food is kept in a retail display cabinet at a temperature warmer than −18°C to an extent consistent with good storage practice but not warmer than −12°C.

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Source: https://www.legislation.gov.uk/wsi/2007/389/schedule/2/paragraph/2 (the official version)
Page: https://openlegislation.uk/quick-frozen-foodstuffs-wales-regulations-2007/schedule-2/paragraph-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.