I just brewed a pumpkin beer 5 weeks ago and became sour and even more so after a month of aging. Its tasting like more of a cider now.
So I did a 2nd batch, made sure everything the beer touched was sanitary. Tasted great in primary, wife even approved of the flavor.
Put it in 2nd, 1 week after primary, with some roasted pumpkin (roasted for 1.5hrs at 300).
2 days later started to taste sour again.
I dont know whats going on or why this is happening.
1lb Extra Special
1lb Rice Hulls
0.5 Pumpkin seeds (roasted and green)
1 tsp pumpkin spice
1968 English ESB WYEAST