On 06/05/2015 12:54, Charlie wrote:
....
That's my experience of the mid-fifties. In the summer my mum would stand
the unopened milk in a bucket of cold water in the outhouse but when that
got warm she would boil the milk so that it would keep longer...

Butter and milk were kept under unglazed terracotta shaped covers, which
stood in glazed dishes that were kept topped up with water. Evaporative
cooling kept them surprisingly cool.

--
Colin Bignell