It may seem obvious to the average beer drinker, but why should you chill a beer? What is it that makes you want to chill a beer and not serve it at room temperature?
All drinks seem to taste better when chilled and this is one of the main ways in which drinks can bring refreshment to your body after working or playing hard. In particular, it can help reduce body heat to a more comfortable level and refresh the mouth and throat. Many drinks, whether soft or alcoholic, actually state on their plastic or metal container that they should be chilled before serving. The manufacturers obviously know that drinks are more refreshing when cold, and instructing you to drink a coke or beer at room temperature may result in an unenjoyable experience ending in you turning your back on that particular brand.
Pouring a warm beer can result in an unsightly large head due to the excess frothing. All beers (except perhaps cask ales) should therefore be stored in a beer fridge prior to serving. The exact temperature of the beer fridge is not very important and often comes down to personal preference - some people don't like their beers too cold, while others love an ice cold beer - especially on a humid summers day when you just can't escape the heat. More generally, the recommended serving temperature for lager is around 8 degress celcius - so try waiting a while for that first sip once you have removed it from your mini fridge - you might enjoy your beer that little bit extra!