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WLP013 and Low Temperature

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gometz

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So I brewed my porter recipe about 10 days ago, everything went well on the brew day. I had to shuffle around my temperature controllers and didn't notice until day 2 that I'd left it at 55 instead of 65. Fermentation took a little longer to start, but I got a reading today of 1.016 (OG 1.065). I treated the same and it was a lot harsher than I remember. Any chance fermenting this low with WLP013 caused the harsher flavor?

I'm freaking out a bit because this beer is for my wedding in March.
 
I should note the changes I made:
-Scaled up from 5.5 gallons to 6 gallons
-Used RO water instead of purchased drinking water, modified water. I'm worried that I adjusted bicarbonate to 200 ppm
- The only other change is the accidental lower temperature
 
Bump.

I don't know the answer to your question but I hope a bump will produce some results. Good luck on the wedding brew!
 
Well the optimum fermentation temp for this yeast is 66-71. So, you were 11 below the optimal temp. But it attenuated down all the way, so no stalling etc. Fermenting too cool is better than too warm. At 3 weeks, you should be able to taste and tell if there is anything harsh going on in there.

I don't know the answer to your question though.
 
Im sure your fine. Nothing you can do about it now but ride it out anyway. Depending on how you were measuring your fermentation temperature (probe in a glass of water, or tapped to the carboy) you are most likely a couple degrees above your ambient anyway. The fact you didnt stall is also a plus, Im sure it will turn out great :)
 
Well maybe the fermentation was alright, but I think I messed up the water. It is really harsh on the back end. My calculated IBU is only 33-35, so I think I added far too much carbonate.
 
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