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-   -   infections (http://www.homebrewtalk.com/f39/infections-371321/)

payton34 12-02-2012 12:25 AM

infections
 
not really a begginer but i thought this would be a good place for some advice. my last 3 batches have been infected with acetobacter.{no doubt about it straight vinegar} the only difference in my process was that i changed to a six and a half gallon carboy. can too much headspace cause an infection? i use a blowoff hose into starsan

ezzellca 12-02-2012 12:32 AM

Yeah from what I know too much headspace is a common cause of infection.

duboman 12-02-2012 12:37 AM

Quote:

Originally Posted by payton34
not really a begginer but i thought this would be a good place for some advice. my last 3 batches have been infected with acetobacter.{no doubt about it straight vinegar} the only difference in my process was that i changed to a six and a half gallon carboy. can too much headspace cause an infection? i use a blowoff hose into starsan

Too much headspace is usually a cause of oxidation and long conditioning and the infiltration of O2

Infection is always due to poor sanitation practice. I'm not saying its not possible but the infection could be coming from anything that is not properly sanitized after the wort cools. Any piece of equipment that comes in contact with cooled wort or fermented beer such as racking canes, tubing, chillers vessels, thieves, hydro meters, hop sacks, etc.......

pabloj13 12-02-2012 01:11 AM

Quote:

Originally Posted by ezzellca (Post 4640438)
Yeah from what I know too much headspace is a common cause of infection.

No, that is complete shenanigans. Headspace does not magically introduce acetobacter. As a previous poster said, headspace, especially in a secondary, can lead to oxygen exposure, oxidation, etc. Poor sanitation causes infection. If it has happened three batches in a row, I'd ditch the soft plastics (hoses, racking cane, etc.) and bleach the fermenter. Pay close attention to anything that comes into contact with the wort.

ezzellca 12-02-2012 08:38 AM

I stand corrected.

homebrewdad 12-02-2012 05:08 PM

Headspace is absolutely not the issue here. Your sanitation has to tbe the culprit.

It's possible that you may have gotten something into your plastic items. If a long sanitation hasn't done things for you, be sure you are disaseenbling things like racking canes, bottling tips, nozzles, etc. If you have been, you may need to look replacing all plastic items: tubing, bottling bucket, etc.

payton34 12-02-2012 09:04 PM

it was ininfected in the primary. i brewed outside this summer, maybe there was something happening during chilling when the wort got below 200 and before i got to pitching temp

homebrewdad 12-02-2012 09:39 PM

Quote:

Originally Posted by payton34 (Post 4642379)
it was ininfected in the primary. i brewed outside this summer, maybe there was something happening during chilling when the wort got below 200 and before i got to pitching temp

One batch? Maybe. Three batches in a row speaks to an ongoing sanitation issue.

beerman0001 12-02-2012 09:44 PM

How are you getting your wort from the brew kettle to the primary?

pabloj13 12-03-2012 01:16 PM

Quote:

Originally Posted by beerman0001 (Post 4642476)
How are you getting your wort from the brew kettle to the primary?

Through the acetobacter-infected hose, of course. ;)


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