Guinness

Hi All,
I have been listening to the podcasts for a while now (in a random order) and on quite a few of them it is suggested that Guinness is a session beer at 3.2%
Well I dont know about the US, but UK it is 4.2% - admittedly not a huge difference unless you have 6 pints!
Sorry for the rant, but it is something that keeps cropping up.

It depends how they're  measured. In the US they often measure alcohol by weight whilst we measure alcohol by volume. Guinness is 3.2% alcohol by weight and 4.2% alcohol by volume, alcohol being lighter than water. Both are therefore correct.