[JFMBearcat]

Hi all, newbie sour brewer here. Just want to verify this is mold growing in my Flanders Red before I dump it down the drain. Thanks

https://imgur.com/a/K5c0mfV

[JT]

Yep.

[RC]

Double yep. But taste it first, you never know, especially when it comes to that style.

[TANSTAAFB]

Where is the mold? In that pic it looks like mold growing on a krausen ring. If there is no mold touching the beer you're fine, just rack to a new fermenter and minimize headspace. Hell, even if there was some on the surface I'd rack out from under it and taste it. I certainly wouldn't dump it without further investigation. Just my 2¢

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[JT]

Everyone has their own risk and safety threshold, but you cannot simply "eat around" mold.  There is more than what you see and if the mold is toxic what you don't see is likely to contain more toxins (root threads). 
Whether it is harmful depends on what kind it is, if it is toxic or causes allergic reaction. 

[trapae]

People eat moldy cheese

[denny]

People eat moldy cheese

Not a great analogy...not all mold is the same

[trapae]

Agreed

[ynotbrusum]

I would rack it out of that and see what happens.  Mold is a bummer on any style, but especially a Flanders Red, given the time invested.

[KellerBrauer]

People eat moldy cheese

Not a great analogy...not all mold is the same

Absolutely not an accurate comparison.  I would not want to get anywhere near that beer, thank you very much!  I have read that the yeast used to make a Flanders Red has produced mold.   But I don’t believe it’s produced to the extent apparent in your photo.  Dump it!

[mabrungard]

When I was using StarSan as my primary sanitizer, I used to see little spots of mold in my fermenter. It was still tasty beer. However, I've moved back to using Iodophor as my primary sanitizer and that has solved the occurrence of mold in my fermenter. StarSan is ineffective in killing mold spores while Iodophor does kill it.

I wouldn't even consider pouring out this beer without tasting it.

[jeffy]

I am firmly in the "taste it before considering dumping it" camp.

[reverseapachemaster]

Is this mold at the lip of the vessel? If so, it may not be anywhere in or near the beer.

[danpixley]

Mold is not an issue unless it comes into contact with the beer.  If it comes into contact with the beer, then any mycotoxins can be distributed throughout the beer since it is liquid and not solid.  You cannot identify whether a mold is toxic based on what it looks like, despite old sayings about red and black colors.  Chances are that it is not toxic, but there is always a chance that it is.  If it hasn't come into contact with the beer, rack the beer into a new vessel (CO2 purge the vessel beforehand). 

I've written more about mold in beer here, with references for further reading: http://www.milkthefunk.com/wiki/Mold

[BrewBama]

Whether or not you are drinking or dumping the beer, I believe you should determine root cause and how to kill it permanently. Martin’s recommendation (above) sounds pretty good.


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