A quick temperature question

[chefjeremy]

I just started to lager my Pink Elephant clone. It's been 4 days now. My problem is that I'm brewing an APA in the midst of a nasty heatwave.
Would it hurt to raise the temp to 63 or so so that the apa can ferment in the same chamber?

 

[flars]

Which yeast are you using for your Pink Elephant? What is the optimum fermentation range for this yeast?

 

[chefjeremy]

The pink elephant (a delirium tremens clone) has already fermented out to 1.002 using wlp-570 and S-04. I'm using US-05 for the APA

 

[flars]

Your lager has fermented out more than 75% so it may be ready for a diacetyl rest. Four days seems a really short time to reach this point, but the combination of yeasts did it.
Check out information on time and temperature for diacetyl rests. I have limited knowledge here. It seems the rest would be done at a higher temperature than 63°F. Raising the temp for a d-rest would allow the APA to ferment out to a point where it could be removed from temp control and then drop the temp for your lager to finish.
I will no longer ferment below 65° with US-05 though. Below 65° 05 can produce peach flavors.

Hopefully this information is near correct and more knowledgeable brewers will have an answer also.

 

[bcmeyer]

It's not a lager, he's just lagering his Belgian. Raising the temp won't hurt it. It sounds like you're just lagering to clear it and age it.


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[flars]

It's not a lager, he's just lagering his Belgian. Raising the temp won't hurt it. It sounds like you're just lagering to clear it and age it.


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Darn. Pink Elephant threw me. I try to avoid seeing them.

 

[chefjeremy]

Exactly, bcmyer. So it shouldn't hurt anything to let it go at 65 for a few weeks while the apa ferments, then I'll crash them both back down to 34?

 

[peterj]

Exactly, bcmyer. So it shouldn't hurt anything to let it go at 65 for a few weeks while the apa ferments, then I'll crash them both back down to 34?

You don't have to leave the APA at 65 for a few weeks. It just needs the tight temp control for the first vigorous part of fermentation. Once that starts to die down (usually after about 4-5 days or so) you can just put it at room temperature and get your Pink Elephant back to lagering temps. A little bump in temperature as the fermentation is slowing can actually be beneficial in getting full attenuation.

 

[chefjeremy]

Right on. Thanks so much for the help!