Yeast temperature shock

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Yeast temperature shock

Postby pingu » Mon Apr 10, 2017 1:55 pm

Hello all,
Yesterday i attempted to get my 3rd gen mcrum off but nothing. In the first gen I added 2 tablespoon tomatoe paste + epsoms salt. so nutrients should not be the issue.
I also add one crushed vit B tablet to every gen.
PH 4.5.
I just sprinkled a little more lowans yeast on the wash this morning and wham bam, thankyou maam we are off to the races.
The only explanation I can come up with for this happening is that when i have my lee's sitting in the fermenter with a few litres of water on top its probably only around 15-20 degress.
Then I add the water/molasses/sugar at around 30-35 degress. Usually i pour it all in in one big hit. I'm thinking that this thermal shock on the yeast could be killing it?
I also had the same problem with my bwko on the 5th gen.
Posts: 85
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Location: Gippsland
equipment: 2" Pot with Shotgun on Keg

Re: Yeast temperature shock

Postby scythe » Mon Apr 10, 2017 1:58 pm

See if you can adjust the pH back up to about 5 next time.
That should help the yeast.
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Location: Central West NSW
equipment: Dreaming of a 4" bubbler

Re: Yeast temperature shock

Postby Azza76 » Mon Apr 10, 2017 7:12 pm

i had the same problem with mine mate hope to have a better run next time :angry-banghead:
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Location: North QLD
equipment: 2" pot still shotgun condenser
2"boka 50 lt keg boiler

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