HELP! Stuck ferment: Convertase or Bioferm L
Has anyone used Convertase or Bioferm L in fermenting beer before, and what was your experience?
We have a beer that has a target terminal of 2.5P that has finished out at 4.2P
There is still a lot of viable yeast in solution and forces with the same yeast and new yeast are both saying this is a fermentability issue, not a yeast issue.
The mash was at 154.4* F (68* C), 2.4* F (1.4*C) above target.
Brewing a compensation tank is probably not an option. While I figure out if it is, I was hoping to get some advice on using enzymes. The fear I have of brewing a compensation tank is that I will be making twice as much beer out of two beers that would be "bad" on their own.
I don't want to dump this tank if it can be salvaged, but it is a large tank and I cannot package it as a different beer.
From what I understand "Convertase" will break down all the dextrins and leave me with a super dry beer. From looking at old threads, it seems some people have used this product successfully by adding very small amounts.
Talking to Kerry (who makes the enzymes) they recommended using "Bioferm L," which is alpha amylase that breaks the 1-4 connection only (rather than convertase breaking the 1-4 and 1-6). I can't find anyone who has used this particular product before. Either way it looks like I may need to cross my fingers and expect to cold crash the beer if we use an enzyme.
Any thoughts or advice would be greatly appreciated.
Last edited by Kushal; 04-16-2012 at 04:57 PM.
Speakeasy Ales & Lagers
San Francisco California