Wellsy wrote:I have not get any answers Bman as I have only done a couple of runs. I thought I would mention that this yeast contains enzymes to breaks down the starch in the grains. So while the yeast might stay alive in a second generation you will need to add new yeast as the enzymes will have expired after doing their work on the first generation.
Apologies if you had already thought of this.
chipboy wrote:On the assumption that they are all still present.
One issue is that you removed a large % of the previous volume and what % of these catalysts went with that? Essentially the concentration will decrease, how much is anyone's guess. I suppose if they are relatively heavy in regards to water then they may reside on the bottom.
The yeast does reside on the bottom as I just emptied a batch using yellow angel and the bottom was grey sludge not brown under the grains.
Needless the old grain and 8kg of raw sugar went in with water and its off again!
B-Man wrote:How do you know when it's done? I've had a 23L 7kg crushed wheat mash going for about 1.5 months and it's still bubbling out of the airlock. Don't know if it's just releasing some of the dissolved co2 or it's still actively fermenting :think:
oddian wrote:Sorry a little late on replying to this one. AY tends to create a head of your grains on top of your fermenter and when it's done for me it still bubbles really slowly even though it's done. I usually just wait until the head has dropped down and you've got yellow (probably a different colour for wheat but I've heard purple is likely?) murky liquid on top instead of the head and then run it after straining. I get an excellent yield from oats, I'm sure it'll be the same from wheat. 1.5 months is super long. I ferment at 30C, which might be a little quicker.
B-Man wrote:I ended up just running it.
I had a guess at volume... only ended up with about 13L
Rough guess was it ended up about a 9% mash.
I had ran some corn through the still before and the first part of the run smelt like corn.... don't know if its from the still or the wheat has a similar smell.
I have some more corn to run through soon and then a rum aswell but waiting to do that last as I don't feel like cleaning it after running the molasses to do the other stuff
oddian wrote:B-Man wrote:I ended up just running it.
I had a guess at volume... only ended up with about 13L
Rough guess was it ended up about a 9% mash.
I had ran some corn through the still before and the first part of the run smelt like corn.... don't know if its from the still or the wheat has a similar smell.
I have some more corn to run through soon and then a rum aswell but waiting to do that last as I don't feel like cleaning it after running the molasses to do the other stuff
Wow 13L from a 23L mash is huge, I run 30L and my best run on stripping is about 8-10L and 2L Spirit run at around 70% once all is said and done but I don't have a great big still so I'm usually happy with that. I assume 13L is your stripping run? What % do you stop at? I go all the way down to 5% on my stripping run and then take cuts on my spirit run. I'm a little heavy on the cuts for the spirit run but I run it again to make gin where I cut it again using an air still.
I ran one yesterday actually and got one of my best yields, this one I left to ferment for nearly 2 weeks and I definitely got a larger and cleaner output, normally I only leave it a week. I think I'll ferment for a bit longer going forward.
howard wrote:I ran one yesterday actually and got one of my best yields, this one I left to ferment for nearly 2 weeks and I definitely got a larger and cleaner output, normally I only leave it a week. I think I'll ferment for a bit longer going forward.
B-Man wrote:I wish I got 13L from the still.
I only got 13L from the fermentor to run, The rest of the fermentor was full of wheat. I only took 2.5L and probably wont be keeping much still yet to taste :))
I decided to run it really slow and do it as a spirit run. took it down to 16% for the final 600ml. so would have been coming out around 10% or less by the end of it.
B-Man wrote:what do you think your wash abv is?
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