No, switching between beer styles in one session does not make your hangover worse on its own. This is the same myth family as beer-before-wine, just applied entirely within beer, and the research on drink-type mixing points the same direction: total alcohol consumed drives your hangover, not how many different styles you drank along the way.
What the Research on Mixing Drinks Shows
Sayings like ‘beer before liquor, never sicker’ have been directly tested, and researchers found that the order and mixing of different alcoholic drinks did not significantly change intoxication levels or next-day hangover severity. What actually predicts a bad hangover is the total amount of alcohol consumed within the time your body can metabolize it, since a healthy adult can only eliminate about one standard drink, or 10 grams of alcohol, per hour, regardless of what form it came in.[1]
This lines up with the more famous beer-and-wine study covered in our piece on whether drink order matters: neither the type nor the sequence of drinks changed hangover intensity in a controlled trial. The same logic extends within beer specifically, since switching from a lager to a stout to an IPA over the course of a night is still just alcohol going into your system at whatever total rate you’re drinking it.
The One Real Effect: Losing Track
The actual risk with mixing styles is psychological, not chemical. When you switch between different beers, especially ones with noticeably different strength, flavor or format (a light lager, then a barrel-aged imperial stout, then a hazy IPA), it becomes much easier to lose count of how much you’ve actually had. A 12-ounce session lager at 4.5 percent ABV and a 12-ounce imperial stout at 10 percent ABV are wildly different amounts of alcohol in the same-sized glass, and if you’re mentally tracking ‘beers’ rather than actual alcohol content, switching styles can quietly double or triple your real intake without you noticing.
Do Congeners Differ Enough Between Beer Styles to Matter?
Congeners are the natural byproducts of fermentation and aging that add flavor and, in some studies, contribute to a rougher hangover, and darker, more heavily flavored beers do carry more of them than pale lagers, similar to how bourbon carries more congeners than vodka. But the gap between beer styles is far smaller than the gap between entirely different drink categories like spirits, and a review of the broader mixing-drinks research found congeners have little measurable impact on intoxication or hangover severity even at the more extreme end of that comparison.[2] In practice, how much total alcohol you drank still overwhelms any congener difference between the beer styles themselves.
- Track total alcohol, not total drinks. A strong imperial stout can equal 2 to 3 light lagers in actual alcohol content.
- Switching styles is fine for your palate, even if a heavy dark beer after several light ones can feel like a lot in your stomach at once.
- Hydrate and pace yourself the same way regardless of which styles you’re drinking, since that is what actually protects you.
FAQ
Does drinking different beer styles in one night give you a worse hangover?
No, not on its own. Research on mixing drink types consistently shows total alcohol consumed matters far more than variety.
Is it worse to drink a strong stout after several light lagers?
It is not chemically worse, but it is easy to underestimate how much alcohol you’ve actually had, since a strong stout can contain 2 to 3 times the alcohol of a light lager in the same size glass.
Do darker beers have more congeners that make hangovers worse?
Slightly, but the difference between beer styles is small, and research suggests congeners have limited real impact on hangover severity even between more different drink types like spirits.
What actually causes a worse hangover when mixing beers?
Losing track of total alcohol intake when switching between styles of different strength is the real risk, not the mixing itself.
Sources:
[1] “Is mixing drinks actually bad?”, The Conversation; Medical News Today, “Does beer before liquor help people avoid hangovers?”
[2] “Is mixing drinks actually bad?”, The Conversation
More Beer Facts and Guides
- Wine Before Beer, Beer Before Wine: Does the Order Actually Matter?
- Why Do Some Beers Give You a Worse Hangover?
- Hangover Cures That Actually Work
- Do Beer Flights Get You Drunker Than a Pint?
