Just watched a very interesting HBW on this channel and I'm sure shall be very controversial...
https://youtu.be/wa2r1-QeGso
https://youtu.be/wa2r1-QeGso
how long can you store the yeast for before using it again
I listened to that youtube vid whilst I was brewing earlier. It might be all that fanciful. If you use overbuilding you can go to at least 13 generations (according to Brulosopher) without any negative consequences and I read some people reckon indefinately
I think you can go for hundreds of generation, in not indefinately with top cropping if done right. I imagine the brewery @cheapbrew got his yeast from top crops if it's been going since the nineties.
The problem with the way craig was doing it, scooping yeast from bottom of the FV (bottom cropping) is you put selective pressure on it doing things this way. As you're always cropping from the bottom your harvesting ever more flocculant cells. The consequence of doing this is you get lower and lower attenuation as yeast wont ferment your wort if it's chillaxing on the bottom of your FV, it has to be in suspention
Yes top cropping,
move the main krausen out of the way and take scoops from just below the surface, store in the fridge and use within a month maximum, preferably less (I've used up to 3 month old but it took a good awhile to get going as there are less viable yeast cells and this can stress the yeast and produce off flavours) so if it's more than a month old just add some fresh wort and make a starter.
Also yeast harvested from the bottom will have dead yeast and hop debris mixed in
I listened to that youtube vid whilst I was brewing earlier. It might be all that fanciful. If you use overbuilding you can go to at least 13 generations (according to Brulosopher) without any negative consequences and I read some people reckon indefinately
I think you can go for hundreds of generation, in not indefinately with top cropping if done right. I imagine the brewery @cheapbrew got his yeast from top crops if it's been going since the nineties.
The problem with the way craig was doing it, scooping yeast from bottom of the FV (bottom cropping) is you put selective pressure on it doing things this way. As you're always cropping from the bottom your harvesting ever more flocculant cells. The consequence of doing this is you get lower and lower attenuation as yeast wont ferment your wort if it's chillaxing on the bottom of your FV, it has to be in suspention
Just watched a very interesting HBW on this channel and I'm sure shall be very controversial...
https://youtu.be/wa2r1-QeGso
I personally think this would be an interesting experiment although it would be long term too pitch these styles against one another.i.e
One SMaSH say 20 litre/10 litre split the wort between top and bottom harvests,and retrieve both harvests at the end of fermentation again one top and bottom for say ten brews using the same recipe.This way you are recovering the yeast from the same brew too see what dissimilarities there is between them at the end and also if there is any significant differences between each brew number from 1 to 10.Just a thought.:thumb::whistle:
Very interesting experiment. Pretty long term though
This I would be interested in doing and maybe a great help to some brewers on the forum if you could post a video/pics of the procedure:whistle:
I have a lush ginger beer (at wine strength) that is still in hen FV and sat I have just been feeding from it and adding sugar to it each time to push oxygen out of the vessel as a bubbler is on it, would I be able to remove most of the brew and hen just put the new ginger beer solution on top of it to reuse he yeast colony ?
I have a lush ginger beer (at wine strength) that is still in hen FV and I have just been feeding from it and adding sugar to it each time to push oxygen out of the vessel as a bubbler is on it, would I be able to remove most of the brew and hen just put the new ginger beer solution on top of it to reuse he yeast colony ?
Very interesting experiment. Pretty long term though
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