As a picky picky person with access to lots of local breweries I do know the difference between ales and beers (and their fun specifics). My OH and a bunch of our friends even brew their own from time to time.
Ale and beer are very different drinks. I don't mind either way in my novels, but sometimes the descriptions jarring wish the term they have chosen.
And Guinness is a stout
there would also have been a fair few porters about and those are generally very lovely. Wheat beers tend to be continental.
I enjoyed the class 1 story. I enjoy my time in Sweden and the variety they have available.
I shall regale another amusing story. Many years ago the Reading University rugby club travelled to America for a mini tournament. They were, as most uni rugby clubs still are, excellent and frequent drinkers of high % beers. They got invited to a party at the American University shortly after arriving. The "beer" on offer was sadly substandard to their normal tastes but being polite brits and never ones to shy away from a party they imbibed heavily. Unfortunately for them, their regular drinking of 7% and higher beers in the UK caused an unfortunate side effect. They couldn't actually drink enough of the US "beer" to get drunk properly. So the obvious answer war to just drink more and drink it faster, right? This also failed, but brought it to the attention of the US party goers who thought it was amazing. It turned into quite an hilarious episode of some US rugby players trying to keep up, drink for drink, with the Reading team. Most of them dropped, completely intoxicated and the poor Reading team were still struggling to get drunk at all. The next morning they were bright eyed and bushy tailed, hangover free and the poor Americans couldn't believe it. The team got carted round about a dozen parties during their trip and shown off a bit as impressive drinkers. They were mighty pleased when they returned back to the UK and promptly got horrificly drunk very quickly after being lulled into a false sense of beer superiority, and all got slammed with impressive hangovers.
Best part is one of the players said that the US beer was 'basically slightly gross old water, hydrating more than intoxicating'. He claims at American student tried to punch him at that point but fell over when he missed.