The session at downtown joe's

[BobBarley]

It is now being carried by BrewMasters Warehouse. I don't normally transfer for cold crash. I let it ferment out and then stick the entire carboy into the keezer (38-40f) and let everything settle out. I asked them if I could just add the biofine at the end of that process and give it a stir and wait another day before transferring to a keg. Any thoughts on this as a stupid idea? I think my concern would be oxygen entering the beer during stirring.

[Colin Kaminski]

Colin also talked about an article in about different hop esters beeing formed if you add then during the late stages of fermentation.

Does anyone have access to that paper/article?

I am very interested in that...

Read "Hop Flavor and Aroma" Edited by Tom Schellhammer. Pay close attention to the articles on glucosides. Keep an O-chem text handy.

[Colin Kaminski]

Has anyone found the hop article Colin mentioned in the show? I believe it was by someone at Sierra Nevada.

The Sierra Nevada research is unpublished but they do lecture about it.

[Colin Kaminski]

Well I tried Biofine Clear A3 for the first time. Dissapointed. I brewed JZ's Cal Common, and put in 16mL (middle of the range they recommend) of Biofine Clear into a 12 gallon batch while I was bringing the temp down to crash after fermentation. I let it sit with the Biofine Clear for 2.5 days, as the beer got into the low 40s. Transfered it into kegs and it was not clear at all.

I'm not going to give up on it, and will try it in the bright tank (keg) on my next beer. I was hoping to avoid a second keg-to-keg transfer. With gelatin I could add it to the fermenter and it would settle everything out.

This finning should be added at or below serving temperature or it can result in a chill haze.