Does anybody have an idea what could be causing a headache the morning after having a 22oz of my imperial rye IIPA? I gave a 22oz to two of my friends and they both said that they had a headache the next morning. I have not had an issue with headaches, but I am used to this style of beer where they are not.
The beer was 8.5%, about 90ibu's, typical ryePA grain bill, fermented on US-05 cake.
My best guess was that their headaches were from dehydration. My experience with the Imperial IPA's is that you should definitely drink some water afterwards (high abv and ibu's?) otherwise you will be parched. They normally drink newcastle or sierra nevada pale ale.
Do you guys have any thoughts, or experiences with this?