The introduction of unwanted organisms or chemicals into the beer. Typically, this refers to unwanted bacteria or wild yeast propagating to levels to cause spoilage of the beer. Often incorrectly called an "infection".

learn more… | top users | synonyms

1
vote
1answer
1k views

Is iodophor ideal for rinse-less sanitization before bottling?

I was talking to a friend today and complainIng about the clean/bleach/sanitize/rinse process I undergo when bottling. He dug a bottle of iodophor out of a back shelf and asked me to try it out. He ...
1
vote
1answer
116 views

Possible wild yeast contamination?

In May I brewed the following beer: 81% Pale 2 row malt 16% Brown malt 3% Black malt Single step mash at 73C. With 290g of hops for a total of 103 IBUs. The OG was 1.077 and it went into primary ...
1
vote
3answers
239 views

Fermentation - Lost cause?

I believe my first homebrew is a lost cause. I'm at 3 weeks, and each week I've done a gravity reading and a taste. The flavor has gotten increasingly sour(astringent) with each week. It's almost ...
1
vote
1answer
249 views

Mead has infection/discoloration

I brewed a sweet mead on February 24th, 2013, racked it to secondary on April 4th, 2013, and was getting ready to bottle it now (end of July). I had been out of town for a few weeks and when I came ...
1
vote
1answer
30 views

Can I deal with diluted amounts of preservatives and still get good hard cider?

On a whim I decided to throw some Cider in a bucket, so I went to the store and grabbed some. I took a chance and bought 2/3 no preservatives and 1/3 preservative (4.5 Gallons total) in order to ...
1
vote
2answers
492 views

Test for Acetobacter in Cider

I started my first cider yesterday. I am concerned that, because I haven't pasteurised I am running the risk of getting 12 litres of vinegar. Is there I anything I can do, now fermentation has ...
1
vote
3answers
224 views

How worried should I be about a plastic-wrapped kettle that had to air chill for two days?

I was in the middle of a 7-gallon brew, when my landlord informed me that the grain that I had put down my garbage disposal had clogged the main drain for the house. My sink is too small for an ice ...
0
votes
1answer
72 views

I can't differentiate between OCD or the smell of vinegar, and need some guidance

Here's my brief story: Bought a Mr. Beer kit and didn't have a clue what I was doing, and out of impatience would squeeze the fermentor to smell the brew, resulting in an infection. I now have cheap, ...
0
votes
2answers
367 views

Overflowing Airlock and Contamination

I use a Raspberry Pi with water-proof temperature probes to monitor the temperature of my fermenting wort, and I feed the probe through the airlock to make direct contact with the wort. Two out of my ...
0
votes
2answers
1k views

Possible contamination / small areas of bubble clusters on top of brew

How would you know if your brew is or isn't contaminated? I'm the first timer that dealt with the broken spigot & had to transfer at 6 days. Just hearing about contaminated home brew so many times ...
0
votes
1answer
56 views

Why is my pre yeast pitch lager bubbling in the fridge?

I have been placing my lager wort in the fridge overnight to get down to my desired pitch temp. This time I opened the fridge to see my airlock bubbling... I understand about possibility of ...
0
votes
1answer
2k views

There is a white film on the top of my bottled beer, what is it?

We brewed beer (Double IPA) for the first time, and we bottled the beer 1 week ago. Now when I look at all my bottles, they all have that white film on the top and I was wondering what it could be? ...
0
votes
3answers
515 views

Should I dump a batch with rubber smell?

I have in bottles a batch smelling like chemicals or rubber. I'm thinking keep it a while, and check if the smell fade out. Is this possible? Or I'm just wasting my time with this batch? As side ...