Crazy Fermentation....wild yeast?

[Harbi]

I have been brewing for a while and have never come across this, I brewed a 10gal bach of an ESB'ish beer, I split it into 2, 5 gal carboys both using the same style yeast. They both started and ended fermentation after about 5 days ish, nohing out of the ordinary and now on the 3rd week one carboy decided to start bubbling and swirling again and hasn't stopped going on the 4th week. Is this a wild yeast?

I did a sniff test and it smells really good I have not done a reading was gonna wait for it to stop.

Any suggestions?

 

[STMF]

You say "same style yeast". What yeast were they and how did you pitch?

 

[Harbi]

You say "same style yeast". What yeast were they and how did you pitch?

Both are the Danstar Windsor Ale Dry Yeast

mixed with a little warm water and pitched in (all sanitized), each had it's own separate pack. They both started fermenting at the same time a few hours later, and both pretty much end at about the same time too, I would say about 5 day's.

With winter conditions, they are stored in the house at a temp range of about 59-66 degs

Then 3-weeks later one decided he wasn't done.

I'm not worried, but more intrigued on what the final product will be.

 

[STMF]

Yeah, then it is abit weird.

Please post back with what final result you got, it would be interesting.

 

[Alain2]

Did you oxygen them differently?