Just tested the gravity of a wee heavy I brewed a little over a month ago and it smells sour but when I took a drink from the hydrometer it was fine.
I noticed the smell when I racked to secondary a few weeks ago.
Also, the smell seems to diminish after sitting out a few minutes.
The fermentation started within 12 hours and was very strong. The temps may have been a little on the high side since my carboy is in the same room as the furnace.
Here's the beer. I got the all grain kit from Northern Brewer.
Scottish Wee Heavy All-Grain Kit : Northern Brewer
Gravity started at around 1.08 and is sitting at 1.022. A little higher than I would like but I mashed in a little on the high side.
Any ideas as to the sour smell?