Just transferred a Kolsch from the primary to a secondary and it had a slight sour taste to it ...The weird thing was it didn't smell bad...but the taste was a little sour.
Is this definitely contaminated or is there a chance this might go away??Unfortunately, I brewed an Alt last night and used the same yeast...I hope it's not contaminated.
I'm planning on kegging the Kolsch next week. If it is sour, what can I do to save or change the beer?