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16-09-2010, 14:30
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The image below is taken from one of Whitbread's brewing records. It's a summary of their brews for the months of July and August 1844:


http://3.bp.blogspot.com/_CHrKKDU9290/TJIa3tnATNI/AAAAAAAAHa4/xJBD85DweJQ/s640/Whitbread_1844_July_August+brews.JPG (http://3.bp.blogspot.com/_CHrKKDU9290/TJIa3tnATNI/AAAAAAAAHa4/xJBD85DweJQ/s1600/Whitbread_1844_July_August+brews.JPG)


Yes, they did brew in the summer in Britain before the discovery of artificial refrigeration in 1870.

How could they do it? By the use of a device called an attemperator. A series of pipes criss-crossing the interrior of the fermenting vessels. Cold water was pumped through the pipes to control the temperature of the wort. Attemperators were first used sometime around 1780. They were very efficient and continued in use well into the 20th century. There muight be breweries that still use themhttps://blogger.googleusercontent.com/tracker/5445569787371915337-8237284153888074371?l=barclayperkins.blogspot.com


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