On Thu, 15 Feb 2007 11:25:29 +0000, MM wrote:

This is what my dad used to do, dig a small hole in the back garden
when the weather started getting warmer. It was about a foot deep and
a foot square. Mum placed the milk bottles therein, which were always
beaded with condensation, even on a warm summer's day.

What's the science behind this?

MM

Probably a combination of preventing the sun getting to it and
dampness in the earth . I take it you didn't have a fridge .
Stuart