If you know what your Ph before adding the yeast you will know if the yeast has taken a hold and started to chomp, Normally if you mash @ 5.2-5.4 and have added no acids to your sparge water your post boil ph will be (depending on boil off) will be around 5.1-5.3. If your Ph @ the moment is 4.8-4.9 your a safish man if its over 5 your fucked. Warm it up to 16 and shake it and see what happens
Thanks Mike, unfortunately the PH meter has ran out of batteries, no idea how, I've only used it about 4 times. Anyway I cracked the lid, kind of looks like the foam on top after I'd finished whisking it up to get some air in prior to pitching than krausen. However, when I move the fermenter the airlock is bubbling. I've cranked it to 12.5c, I'll see what happens tomorrow and if nothing put it to 16 and try another day.
If that fails, what do you reckon to pitching a packet of 05 or 04? I know it's far from ideal, but it might save a drain pour.
Yeah it should have been enough. I think I might be out the water, I checked this morning and it's dropped 2-3 points, so at least it's off and running finally. Maybe just a slow starter? I've left it at 12.5 today and I'll prob drop it down to 12 tonight for the rest of the fermentation, perhaps a raise at the end to make sure it finishes up.
Permalink Reply by jt on August 2, 2010 at 10:24pm
78% mate, pretty good I'd say. My Schwarz was down to about 1.022 last night, sposed to finish at 1.016. I increased to 16c for a diactyl rest and hopefully to knock those final few points off. If I get better attenuation on this one it'll be finishing quite dry.