Fermentation temps

[ImperialStout]

Any thoughts on what effect a fermentation temp swing from 55 to 76 will do to a RIS? Do not know how long the beer was at a given temp.

Just fermented a RIS. Ambient temperature ranged from 55 to 76 deg F for the 3 weeks it has been fermenting. Transferring today to secondary for and bottling next week.

 

[Kobainisalive]

Did you hit your final gravity? How does it taste? A swing in temps aren't great for your beer.

 

[hercher]

What yeast did you use? I have a feeling you haven't done anything particularly bad to your beer. Certain yeasts can taste a little fruitier at higher temperatures, or may be less efficient at lower temperatures. Were these daily swings in temperature, or did you just hit 76 once?

 

[ImperialStout]

Thank you. Asked the original question in case there were off flavors that could be corrected. Transferred brew today, took reading and sample. Link to my recipe.

http://hopville.com/recipe/901544/russian-imperial-stout-recipes/beagle-bier-imperial-stout1

OG should have been 1.088 and FG 1.018 for 9.3% ABV. Got OG 1.074 and FG 1.014 for 8.0% ABV. Not bad for second partial mash. Need to get mash / brewhouse efficiency up from 59% but working on that.

No off flavors, just a very, very dark brew with a pleasant bitter taste and great body. Plan to bottle next week and let condition for a month. Will let HBT know how it turns out.