One of the books I'm currently reading is Roger Protz's The Story of Brewing in Burton on Trent. It's a fairly light weight book, but it has its moments. I particularly enjoyed this line from when he's talking about the first world war:
"Guinness said it was impossible to brew a stout at anything less than 1.042"
Sadly there's no reference but I'm pretty sure that would mean modern draught Guinness isn't a stout.
He's just made that up, based on the strength of bottled Guinness in the 1970's. Guinness had a higher gravity than 1042 until WW II at least. Can't give the exact date because I'm on the road.
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