Fermentation Update Folks. (Thanks for those who are interested)
The activity in the fermenter has slowed now and the manoeuvre to the second cake is all set up. I sanitised my hydrometer and dropped her in. Liquid is showing 1067. Without any prior experience 1192 --> 1067 seems like a reasonable effort. The 099 has had plenty of love and care, lots of O2, nutrient, and a damn good cake to begin with so my initial reaction is that I hoped this gravity would have been lower for a settling gravity.
But the beast which is 099 is equally new to me in this type of application so it just might be having intermission. I rouse up the yeast cake regularly and every time I do I see CO2 bubbles rising in uniformity around the vessel. It has me thinking that while 099 can handle the ethanol levels, it can't invigorate itself up from the cake at the bottom to get the work done. A hunch I have is that I need constant agitation to get this to final. But from my perceptions of what's going on, I think each of the agitations is achieving only 3 points under some sort of 1-e^t function.
The next cake will tell the story. I've asked this question before but the answer was no good. I want to see what the next cake can do before being overcome by the ethanol. Can the yeast metabolise sugar BEFORE cell death from the ethanol?
A parallel plan is the enzyme game. I'm getting some of this tomorrow
http://www.chemistwarehouse.com.au/buy/64865/Bioglan-Digest-Eze-40-Capsules
Also, if the 099 can handle 25% ABV, then what are the parameters of my ferment that are not ideal for it to rock on (other than agitation which I've guessed). My mash was low but maybe concentration of non-fermentables will prevent an FG below 1039. SO, this could catch me out where as the main game will be to use a lot more simple sugars... currently I'm where I am with only malt sugars.
That's all for now.
I'm skipping the ginger beer for now lagerfrenzy and kerr. This game has my attention and effort for now.
Cosdog.