A few months ago I made a belgian quad, with wlp 530. I missed my mash temp low and wound up with a very highly attenuated beer. I assumed because the gravity was 1.006 it was done. And for 3-4 months I was right. Now I left this to age through the summer in my basement. I cracked one open and sprayed my whole kitchen. It was room temp as well. The next day I tried another one. Same thing. Tried what was remaining and it tasted metallic and hot. No glaring in your face infection taste. To make things weirder I gave one to a buddy who tossed it in his fridge and he said it was great. I gave this to him about the same time i had my last one which was in June and it was green but no other problems. I am really glad I keg now.
I'm going to toss one in the fridge and see if the same thing happens when it's cold.
I am just curious why carbonation was fine after two months in the bottle but now after four months it's gushing.
I hope this beer isn't ruined, but if it is I can deal with it.
In the fermentor: Skidmark Sour Brown Ale
Tap 2: Kolsch
Tap 3: Lil' Runt Mild