Do Brits like their beer warm or cold?

The Brits have to decipher baffling American words all the time, even though one notices a huge amount of Americanisms used by Brit writers. On the other hand, if you are American it could take you years to realize that "having tea" is something more than having a drink, and includes supper. The Brits say pants when the Americans say undershorts, the Americans say pants when the Brits say trousers. In British English an out house is a shed, to an American speaker an out house is a an outdoor toilet. An American once asked in a forum if Brits liked their beer warm or cold.