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Thought that might be a problem. Gonna have to spend more money, I guess! I have access to an autoclave, has anyone every had success with this sterilization method?

Kai - super tart is a good description. Are you saying the strictly aerobic bacteria are the lacto's or pedio's or the acetobacter? You're thinking anaerobes due to the fact that the beer is flat?

Okay... gotcha'! Thank you very much! Will keep you updated! :tank:

OK Yuri - if I hear what you are saying, you suggest opening a bottle (if it wasn't flat already, let it go flat) add a tsp or so of sugar (or vodka) and sit covered for a week. The yeast thats still there will convert the sugar to alcohol that the acetobacter will use up. The acetobacter...

VERY interesting. I'll not only find out what ingredients are being used, but open one up and let it sit. Thanks so very much! You describe a "mother"... is that the mother of infection?

Yuri - I left out an important point. The beer is flat to begin with.

Holy smokes... Hearing that it could be a bacterial infection is a SCORE for me. I'm a MICROBIOLOGIST (!) here in Colorado. I'll take home some culturettes tonight and work them up for bacteria. Should I culture only the fluid part of the beer, the sediment in the bottom of the...

Yuri - distinct smell of vinegar, but tastes more like "sour" than "vinegar", however (whatever that particular difference may be!) I would not equate the sour-ness with something that would go in a salad dressing... haha! It's more like the sensation of biting into a raw lemon.

Germey - great points! This beer is what I would call very sour, however. Although it doesn't taste like a lemon, I can't only compare the sourness to biting into a raw lemon. It almost takes your breath away. :eek: I'd expect bitter beer to do the same thing, however, this beer tastes...

Hi all! My husband has had bad luck twice now with batches of beer that are very, VERY sour. Is there a particular thing that contributes to this? ie: sterilization technique, fermentation time, etc? Or, can it be a combination of things? Thanks for helping me out with a very...