Pedant alert
When changing from one barrel to the next, if you have old cellar equipment or do not turn the gas off at the cellar bouy, the first pint from the next barrel can have an overabundance of CO2/N2. This can make the pint have a head like you'd just held the hit tap down for 5 minutes and make the pint taste sour. I wouldn't want that pint, but the customer should really say that they don't want the first one out of the barrel.
Oh, and Rosie-Pie, first pint out of the lines can be warm and horrible as it's been without cooler when sat in the lines even a water cooled font or t-bar is not good enough to solve this problem as there are still stretches of the python uncooled.

Sorry

*gets coat*
( monkeyboyalpha jumping on the bandwagon since, Fri 5 Sep 2008, 10:19, Reply)