Author Topic: Mold in Mason Jar  (Read 1434 times)

Offline davidgzach

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Mold in Mason Jar
« on: September 14, 2014, 06:55:17 PM »
I like to wash and reuse my yeast in mason jars.  Opened my fridge to see what yeast I had and saw that there was some mold floating in the beer on top of my 2633.  I poured it out and the yeast smelled just fine.  Thoughts on whether to reuse or should I just toss it?

Dave
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Offline denny

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Re: Mold in Mason Jar
« Reply #1 on: September 14, 2014, 07:24:38 PM »
I wouldn't risk it.  IMO, yeast rinsing isn't necessary and is just one more thing you can screw up.
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Offline davidgzach

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Re: Mold in Mason Jar
« Reply #2 on: September 14, 2014, 07:28:52 PM »
I wouldn't risk it.  IMO, yeast rinsing isn't necessary and is just one more thing you can screw up.

I'm thinking the same.  But not about rinsing.  I've saved several hundred dollars by washing and reusing.  This is the first time in many years I've had an issue.

Dave
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Offline denny

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Re: Mold in Mason Jar
« Reply #3 on: September 14, 2014, 08:09:29 PM »
I wouldn't risk it.  IMO, yeast rinsing isn't necessary and is just one more thing you can screw up.

I'm thinking the same.  But not about rinsing.  I've saved several hundred dollars by washing and reusing.  This is the first time in many years I've had an issue.

Dave

I'm not saying don't reuse...I'm on a 5th generation 1450 slurry at the moment.  But I never rinse it any more.  I founds no advantages to doing that.
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Offline davidgzach

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Re: Mold in Mason Jar
« Reply #4 on: September 14, 2014, 08:11:17 PM »
Got it.  I hear ya Denny.

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Offline klickitat jim

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Re: Mold in Mason Jar
« Reply #5 on: September 14, 2014, 08:28:34 PM »
I quit doing it and agree to no advantage. Perhaps in a pro setting with a lab and trying to kill bac with an acid wash, bla bla, but I am a believer in just leaving a bit of the beer on the cake, swirl around, dump into a sanitized container.

Offline davidgzach

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Re: Mold in Mason Jar
« Reply #6 on: September 14, 2014, 09:20:36 PM »
I quit doing it and agree to no advantage. Perhaps in a pro setting with a lab and trying to kill bac with an acid wash, bla bla, but I am a believer in just leaving a bit of the beer on the cake, swirl around, dump into a sanitized container.

For hoppy or big beers I think you do get a cleaner slurry by rinsing.  I boil my mason jars with the water, let cool and then pour 2 in the fermenter, swirl, pour in to a sanitized container, let it settle for 20-30 minutes and pour back in to the mason jars leaving behind the trub and hop material.  Let them settle again and combine to one jar. 

I get a really nice clean slurry with minimal effort and always have sterilized jars available.

Dave
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Offline klickitat jim

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Re: Mold in Mason Jar
« Reply #7 on: September 14, 2014, 10:19:23 PM »
Pretty much zactly what I did. Glad it works for you. I thought it was awesome,  but quit and haven't noticed any difference in final product. But my experience is not the end all be all, for sure. What convinced me to change was tge idea that beer is a good medium and ph for yeast to relax in for a while. Made sense so I changed.

Offline ynotbrusum

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Re: Mold in Mason Jar
« Reply #8 on: September 14, 2014, 10:25:05 PM »
Pretty much zactly what I did. Glad it works for you. I thought it was awesome,  but quit and haven't noticed any difference in final product. But my experience is not the end all be all, for sure. What convinced me to change was tge idea that beer is a good medium and ph for yeast to relax in for a while. Made sense so I changed.

That has been my experience - and rather than using different beer after rinsing, I just use what the yeast just made.  If I have a little trub, I don't sweat it.
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Offline klickitat jim

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Re: Mold in Mason Jar
« Reply #9 on: September 14, 2014, 10:51:51 PM »
Pretty much zactly what I did. Glad it works for you. I thought it was awesome,  but quit and haven't noticed any difference in final product. But my experience is not the end all be all, for sure. What convinced me to change was tge idea that beer is a good medium and ph for yeast to relax in for a while. Made sense so I changed.

That has been my experience - and rather than using different beer after rinsing, I just use what the yeast just made.  If I have a little trub, I don't sweat it.

Right, that beer not store bought. I'll add that if I have a big or messy beer that I don't keep it. And add that I think the rinse routine is fine. Im not dissing it

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Re: Mold in Mason Jar
« Reply #10 on: September 15, 2014, 12:18:06 AM »
For hoppy or big beers I think you do get a cleaner slurry by rinsing.  I boil my mason jars with the water, let cool and then pour 2 in the fermenter, swirl, pour in to a sanitized container, let it settle for 20-30 minutes and pour back in to the mason jars leaving behind the trub and hop material.  Let them settle again and combine to one jar. 

I get a really nice clean slurry with minimal effort and always have sterilized jars available.

Rinsing yeast with and storing it under boiled serves absolutely no useful purpose.  If you want to know the reason why yeast rinsing is a poor practice, here is link to a thread that I started on the subject of yeast rinsing: https://www.homebrewersassociation.org/forum/index.php?topic=19850.0.   

Offline davidgzach

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Re: Mold in Mason Jar
« Reply #11 on: September 15, 2014, 12:21:49 AM »
I don't store it under boiled, I store it under the (diluted) beer. 

I look forward to reading the thread.

Dave
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Offline Thirsty_Monk

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Mold in Mason Jar
« Reply #12 on: September 15, 2014, 12:24:28 AM »
I wouldn't risk it.  IMO, yeast rinsing isn't necessary and is just one more thing you can screw up.

I'm thinking the same.  But not about rinsing.  I've saved several hundred dollars by washing and reusing.  This is the first time in many years I've had an issue.

Dave

I'm not saying don't reuse...I'm on a 5th generation 1450 slurry at the moment.  But I never rinse it any more.  I founds no advantages to doing that.

I also think that yeast rinsing is asking for trouble.

I am in 25-th generation of my yeast. Yes yeast got more powdery and attenuate better. Still going strong. May be I buy new pitch next year.
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Offline davidgzach

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Re: Mold in Mason Jar
« Reply #13 on: September 15, 2014, 12:24:42 AM »
For hoppy or big beers I think you do get a cleaner slurry by rinsing.  I boil my mason jars with the water, let cool and then pour 2 in the fermenter, swirl, pour in to a sanitized container, let it settle for 20-30 minutes and pour back in to the mason jars leaving behind the trub and hop material.  Let them settle again and combine to one jar. 

I get a really nice clean slurry with minimal effort and always have sterilized jars available.

Rinsing yeast with and storing it under boiled serves absolutely no useful purpose.  If you want to know the reason why yeast rinsing is a poor practice, here is link to a thread that I started on the subject of yeast rinsing: https://www.homebrewersassociation.org/forum/index.php?topic=19850.0.

What is your thought about the mold that was floating up top?  Toss the slurry?  Like I said, it smelled just fine.
Dave Zach

Offline davidgzach

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Re: Mold in Mason Jar
« Reply #14 on: September 15, 2014, 12:25:54 AM »
Now a 25th generation is definitely asking for trouble!
Dave Zach