Albionwood
Member
Think, most regional beers were made based on that location. Stouts tend to come from regions that are cooler in temperatures. And while today anyone and anywhere can make a stout, you'll typically see them in their seasonal form in the winter. So, they tend to be on the heavier side. Lighter lagers and wheat beers like a hefeweizen are typically designed around more warmer climates.
Not really. Guinness Stout is not a "heavy" beer, it is a light-bodied low-alcohol beer made for people who like to drink several pints in a night. (Called "session beers" in the British Isles.)
It's a common myth that dark = heavy, but there is no truth to it. Most dark beers, and all Stouts, get color and flavor from grain that is kilned or roasted to high temperatures, producing the characteristic roasty flavors (similar to dark-roasted coffees). It only takes a small proportion of the grain bill to get this result, so you can get everything from the light-bodied sessionable stouts like Guinness to the big heavy Imperial Stouts.
The seasonality of beer styles is something that has developed after-the-fact; that is, the beer styles came first and then people decided certain styles went better with particular seasons. The stories behind the development of regional styles of beer are complex and fascinating, often having to do with the local water supply or economics. (Guinness for example probably developed at least in part because the local water supply was not suited for pale ales.)
Getting back to the OP - it's hard to say what triggers migraines, but if Guinness tends to trigger them less than other beers, I'd guess it might be related to the amount of residual sugars. Guinness is a fairly "dry" beer, meaning it has relatively little unfermentable sugar in it (hence the light body). Many other beers, and all of the big heavy-bodied styles, use specialty grains to leave complex unfermentable sugars in the beer, and these can cause adverse reaction in some people (usually digestive, but also headaches and hangovers). However, it could also be any of the other ingredients; most American light lagers use a significant percentage of corn, for example, and some styles use a lot of wheat. Or it could be the hops - Guinness isn't a particularly hoppy beer.
Good luck to you! Migraines are certainly nothing to trifle with. I've only had two and that's enough for me.
