Causes of low attenuation

[Steve3730]

So beer is tapped and going and i have to say it is surprisingly good. Little sweet base but at nearly 50ibus the hops balance against that well. The dryhops in the keg gives it awesome aroma.

 

[xdfxdgh]

Well, I've seen a lot of extract batches that seem to peter out at 1.020ish range. The water in the swamp cooler was pretty cool... any idea what the temp of the beer in the fermenter was while it was fermenting?

 

[Steve3730]

Well, I've seen a lot of extract batches that seem to peter out at 1.020ish range. The water in the swamp cooler was pretty cool... any idea what the temp of the beer in the fermenter was while it was fermenting?

That i do not know. Upgrading to a internal temp probe and controller is next on my list