phenolic lager yeast?

[ba-brewer]

Anyone ever get phenolic aroma from a lager yeast, is it even possible?

I am building up a starter of WLP860 from a slant and I am getting a phenolic aroma(clove) from the second step. I have used this a yeast a few time but don't recall getting phenols.

Doing the starter at room temp(~70F) which does not seem too high for propagation to cause stress.

 

[Simonh82]

Did you use chlorinated tap water?

 

[ba-brewer]

It was canned wort so I had to double check my notes, and it was tap water but I did add camden. My RO water does not completely remove chloramine so I started adding Camden to my RO water as well.

I did have a diastaticus wild yeast contamination a while back so I am a bit gun shy when I smell clove.

 

[Northern_Brewer]

I'd assume you've got contamination somewhere, a lager yeast shouldn't be producing phenolics like that.

 

[Miraculix]

Anyone ever get phenolic aroma from a lager yeast, is it even possible?

I am building up a starter of WLP860 from a slant and I am getting a phenolic aroma(clove) from the second step. I have used this a yeast a few time but don't recall getting phenols.

Doing the starter at room temp(~70F) which does not seem too high for propagation to cause stress.

Had this with 3470, beer was infected. A tasty infection, though

 

[ba-brewer]

Thanks for the comments.

I'd assume you've got contamination somewhere, a lager yeast shouldn't be producing phenolics like that.

That is my assumption too but thought I would ask any ways.

I put a airlock on the starter and will let it got for a couple weeks to see if it continues to attenuated the wort. I don't see any airlock activity and the majority of the yeast fell quickly leaving pretty clear beer, but today the top is looking a bit frosty. I took a small taste and I would say the beer is a little tart so maybe it is not the same thing that got me before.

Had this with 3470, beer was infected. A tasty infection, though

I have a near full keg of my last contaminated batch, even though it actually tastes fine (kind of a like clean saison) knowing that it is not the cream ale it was intended to be makes it hard to drink.