Wild yeast or infection?

Rooster Home Brewing

Rooster Home Brewing

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Hi guys,
My wort had been sitting overnight in the kettle to get down to temp which I do with all my brews ( no chill ). Today when I opened it I noticed a krausen? It was an usually high aggressive boil to start and thought maybe just proteins. Added it to the fermenter @32 degrees, added Kveik, then added airlock, took it to the garage. Walked past it 2 minutes later and the airlock is going nuts!

I guess I’ll just just ride it out to see what happens but my question is whether it’s wild yeast or bacteria and how do you tell?

@Trialben jump in mate,
 

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It is very likely fine, but you'll find out when it is finished - if it is bad, you'll know. It smells awful.
 
Figjam72 said:
Hi guys,
My wort had been sitting overnight in the kettle to get down to temp which I do with all my brews ( no chill ). Today when I opened it I noticed a krausen? It was an usually high aggressive boil to start and thought maybe just proteins. Added it to the fermenter @32 degrees, added Kveik, then added airlock, took it to the garage. Walked past it 2 minutes later and the airlock is going nuts!

I guess I’ll just just ride it out to see what happens but my question is whether it’s wild yeast or bacteria and how do you tell?

@Trialben jump in mate,
Click to expand...
That's kviek there mate two minutes and she's going Nuts good work!
You mighta set a new Guinness World record for quickest start to fermentation lol!

Not sure on the krausen thing as Don said it it smells like vomit you did bad if it smells like heavenly beerery goodness you done Good ;)
 
Hopefully all good…
I’ve never seen the froth on top the next day after chilling, so thought it was a bit strange and it did have a strange smell but so does my back yard from all the rain so that could be it..when I sniff the airlock it smells like a hoppy/ happy fermentation . Just thought it was way too quick to start fermenting. Also first time using mangrove jacks Kveik m12. See how we look in a week…
Thanks guys
 
Krausen in the kettle the next morning is a bit concerning.
Kveik gets going pretty quick, but 2 minutes is a lot quicker than I have ever seen, even with liquid Kveik.
Was the kettle left uncovered overnight?
Was it in the house, garage, outdoors?
Sounds more like you might have a wild yeast going in there to me.
I once left a gravity sample out overnight, it had krausen the next morning.
 
will be interesting To see where this goes. Something Spontaneous happened here
 
Figjam72 said:
Hopefully all good…
I’ve never seen the froth on top the next day after chilling, so thought it was a bit strange and it did have a strange smell but so does my back yard from all the rain so that could be it..when I sniff the airlock it smells like a hoppy/ happy fermentation . Just thought it was way too quick to start fermenting. Also first time using mangrove jacks Kveik m12. See how we look in a week…
Thanks guys
Click to expand...
Well, wild yeast isn't usually faster than kviek. Ben did some experiments with wild yeasts. I still think it'll be fine.
 
Figjam72 said:
Hopefully all good…
I’ve never seen the froth on top the next day after chilling, so thought it was a bit strange and it did have a strange smell but so does my back yard from all the rain so that could be it..when I sniff the airlock it smells like a hoppy/ happy fermentation . Just thought it was way too quick to start fermenting. Also first time using mangrove jacks Kveik m12. See how we look in a week…
Thanks guys
Click to expand...
Anecdotally, I have seen spontaneous fermentation in wort left overnight in my hydrometer sample tube. That wort in the sample tube had a quarter inch of Krausen the next morning, and the resulting beer turned out just fine. I hope your beer comes out fine.
 
Herm brews said:
Anecdotally, I have seen spontaneous fermentation in wort left overnight in my hydrometer sample tube. That wort in the sample tube had a quarter inch of Krausen the next morning, and the resulting beer turned out just fine. I hope your beer comes out fine.
Click to expand...
Same
 
Donoroto said:
Well, wild yeast isn't usually faster than kviek. Ben did some experiments with wild yeasts. I still think it'll be fine.
Click to expand...
It did have overnight to get started, hopefully it works out okay
 
Craigerrr said:
Krausen in the kettle the next morning is a bit concerning.
Kveik gets going pretty quick, but 2 minutes is a lot quicker than I have ever seen, even with liquid Kveik.
Was the kettle left uncovered overnight?
Was it in the house, garage, outdoors?
Sounds more like you might have a wild yeast going in there to me.
I once left a gravity sample out overnight, it had krausen the next morning.
Click to expand...
It was left outside and it wasn’t completely sealed because I had a hop bag tied up to the handle. It did also smell a bit wrong but my back yard stinks from all the rain so wasn’t sure. I’d also used a different grain bill to what I’m used too. Could be interesting…oh well always learning something new
 
Pity you didn't flick a pick of the No chill Krausen the next day.

I put alfoil on top then put lid on this gives it a pretty good seal even with hop bag suspended and clipped to edge.

Clingwrap is another option....
 
I'm clingwrapping for no chill
Generally the kettle and myself as me and clingwrap don't really get on, but I feel it makes a better seal than alu foil.
Although I haven't tried alu foil under the lid.
Let's hope it works out OK
 
Figjam72 said:
Update….got home today and it smells like someone took a sour dump in my fermenter! Think I’m in trouble here, I’ll ride it out and see what happens. I’ll be making sure the kettle is airtight from now on
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That does not sound good :(
 
Outside & unsealed overnight after a heavy rain with odd smelling things around? Yikes!
 
Figjam72 said:
Update….got home today and it smells like someone took a sour dump in my fermenter! Think I’m in trouble here, I’ll ride it out and see what happens. I’ll be making sure the kettle is airtight from now on
Click to expand...
Ah, well, we live and we learn. With a foul
Odor, it is likely infected with something you do not want. After you empty that vessel, scrub it very well and take care to sanitize it well too. A mild bleach solution, or some iodophor (iodine-based solution) would be a good idea.
 
Donoroto said:
Ah, well, we live and we learn. With a foul
Odor, it is likely infected with something you do not want. After you empty that vessel, scrub it very well and take care to sanitize it well too. A mild bleach solution, or some iodophor (iodine-based solution) would be a good idea.
Click to expand...
Did he mention if it was stainless or not? shouldn't use bleach if it is
 
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