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".

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Consequences of infection in a beer?

Everyone learns during their first brewing experience that you have to carefully sanitize anything that touches your wort after the boil to avoid infection. What happens when wort gets infected? How ...
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3answers
1k views

Lacto contamination in plastic fermenter = new fermenter?

Just bottled my first contaminated beer, got lazy and didn't freeze/boil the watermelon I added to a wheat beer and got lacto(?) contamination and an amazing sour watermelon beer as a result! But, ...
6
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1answer
1k views

Cherry vinegar (was supposed to be mead)

Last week I started a cherry mead and discovered yesterday that it had turned to vinegar (and not even nice-tasting cherry-flavoured vinegar - it smelled and tasted awful, though the colour was ...
9
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2answers
4k views

does starsan kill yeast

Is Starsan effective against yeast? After resuming homebrewing again after a 2 year break, I started having pellicle appearing on my starters (after fermentation had completed), which has now spread ...
7
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3answers
687 views

cleaning vs. sanitizing

I have made over 50 batches of homebrew, and I have a confession: I rarely CLEAN my equipment. I take a quick look to see if there is any visible debris/dust, etc., and if so, I will spot clean it or ...
0
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1answer
670 views

Slight fizz in beer after 6 days in the fermenter - game over?

I put a batch on last Sunday, started off with a crazy high reading on the hydrometer (around 1080 when I was expecting 1040ish according to the kit) - though I suspect that was because I drew a ...
5
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4answers
2k views

Can a little human spit spoil fermented beer?

The other day, I was with my friend getting ready to bottle a batch of modified cream ale (our second homebrew so far). We were using an auto-siphon to transfer beer from fermenter to the bottling ...
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2answers
2k views

Ways of saving an band-aid beer

I am exploring what in my process could have possibly caused this flaw, but it is likely old yeast propogated in a starter and then pitched, as this has not happened to me ever before. What I am ...
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1answer
848 views

First Brew: Yellow Mold - Transfer to Carboy - Slowing of Fermentation

I brewed a batch of Pale (first solo brew) and after pitching yeast (6 hours), noticed yellow clusters of what I think was mold. I thought I had an infection, so I siphoned off, and collected ...
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5answers
16k views

What kind of infection is this and is the beer ruined?

Picture of Infection This is my first all-grain batch and unfortunately it has developed some kind of growth. It didn't smell like death, actually smelled pretty good, and the samples I have been ...
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2answers
507 views

Do I have contamination('infection')?

Beer Kit: Brewferm TarwebierThis was my first time using StarSan as it's hard to get in my neck of woods. Is this some ugly Krausen or an infection, if so what type? Is there any recovery from this, ...
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4answers
839 views

Overcarbed or gusher contamination('infection')?

Is there an easy way to detect whether excessive foaming / gushing is the result of over carbonation or a gusher contamination? Perhaps a telltale taste or other indicator?
2
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1answer
293 views

Raspberry Stout Contamination('infection')?

I brewed a 5-gallon batch of Frankenberry Chocolate Raspberry Stout July 20 (11 days ago) using a Scottish Ale Wyeast. The yeast was pitched at 78 degrees, everything was sanitary, I immediately ...
2
votes
2answers
387 views

Consecutive (lacto?) contamination('infection') with different fermenters

My two last batches got a sour/white wine taste to them (prior to bottling). The first one was a Hefeweizen fermented in my bucket. The taste was present from day 4 up to bottling a month later. In ...
3
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2answers
31 views

Is beer more vulnerable to contamination than hard cider

I have made about 10 batches of hard cider. I have yet to have a contamination issue ruining a batch. I clean the carboy with washing up liquid and warm water. The bottles are the same. I use a juice ...
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2answers
497 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 ...
6
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1answer
3k views

How to identify a brett contamination

I brewed a single hop American pale ale with palisade. It's not the greatest beer in the world, but seemed passable to me. Another brewer tasted it and thought he picked up brett in it. Palmer ...
1
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1answer
2k views

Is this lactobacillus?

My last batch had a thin whitish 'membrane' on top of it and some white spots, visible on the picture bellow. I think I saw something similar on a blog a while ago, attributed to a lactobacilus ...
6
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2answers
248 views

interesting formation in fermenting beer

Anyone have a clue what these formations are in my Kolsch style beer? Been in secondary for about 3 weeks due primarily to lazyness. I cleared with gelatin about two weeks ago and it's nice and clear ...
2
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3answers
866 views

My ferment has small black specs in it, is this an infection?

This seems to be very similar to this question about hop seeds but I have not used fresh hops, I used pellet centennial hops purchased vacuum packed and frozen from homebrew shop. Ingredients (1 ...
3
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1answer
296 views

Is this white thing correct in kriek lambic?

I'm making my first lambic beer, a kriek lambic with a one month old, last week I dropped 1lb cherries. Today, I noticed this white thing in top: Should I concern about this? Or just let it go...
2
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1answer
166 views

Infection (SCOBY/Acetobactor) or possible over-use of a fining agent?

Situation Never mind the two hop bags that didn't sink, those things are more buoyant than what I gave them credit for. This is the beer in a secondary vessel. I wanted to get it off the yeast ...
5
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2answers
1k views

White Stuff — is it bad?

I just brewed a raspberry wheat w/ ~2.5 lbs of frozen (organic) raspberries added to the secondary. I waited about 23 days after adding the berries to bottle, and when I went down to the basement to ...
1
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1answer
255 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 ...
0
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3answers
529 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 ...
0
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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? ...
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4answers
1k views

Waited 6 Days after boil to pitch yeast, Wort had what looked like mold, what can be done?

Like the title says, after I chilled my wort I realized the kit I ordered did not come with yeast, an error on the packers fault. Because of my work schedule I wasn't able to pitch the yeast for about ...
2
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3answers
140 views

How do I get a turkey baster out of a carboy?

When I was pulling wort out of a carboy to take a hydrometer reading, the bottom part of the baster separated from the head and fell into the carboy. What's the best way to get it out with the fewest ...
3
votes
4answers
846 views

Does Dry Hopping create a white film with bubbles?

Might be a weird question! I have brewed, with a friend, 6 batches of beer so far. An IPA, then a Stout, a Saison, a Doppelbock, an Baltic Porter and finally, the same IPA. All grain, always. Of all ...
4
votes
1answer
543 views

Is this wort infected? (*Picture)

This is my 30th or so batch and I've never seen this before. The best way I can describe it is that it looks like summer in the Arctic and pieces of ice are breaking off the ice caps. Any idea as ...
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5answers
143 views

trying to ID if my beer was infected!

My brown ale smelt somewhat like beer and possibly vinegar and tasted the same but with a very subtle sweetness but also very dry and puckering. I used only used dry extract and boiled the hops, no ...
1
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3answers
241 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
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1answer
118 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 ...
4
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4answers
74 views

Contamination concerns when removing stopper?

This might seem dumb to most, but it's only my third batch and I just need some reassurance. So, I occasionally pop out the rubber stopper on my carboy to smell the brew and see if anything funky ...
4
votes
3answers
382 views

Water level low on airlock. Is it contaminated?

About 48 hours into my ferment I noticed a significant amount of liquid (about an inch) is missing from my airlock. Reading up on the subject I've realized that water was probably sucked into my brew ...
1
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1answer
63 views

Has My mead gone south?

This is rather my first time doing a mead. It has been a month since i put it up for fermentation. Its been locked in a relatively stable temperature and totally dark enviroment. Today, after a full ...
2
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3answers
145 views

How (and how soon) can I determine if my primary is contaminated?

My brew day ran long and by the end of the process I was tired and ready to be done. Due to this lapse in concentration I had a major failure in my sanitation process - I forgot to sanitize my better ...
4
votes
1answer
144 views

Is this pediococcus contamination('infection')?

A berliner weisse we forgot to bottle for around a month and a half. Did not introduce pediococcus or lactic acid in the fermentation. Did a sour mash before the boil so lactobacillus shouldn't have ...
3
votes
1answer
52 views

When racking my beer, it looked like someone had poured cream in

I made my first beer from a kit and followed the instructions carefully as well as reading around. Specifically, I was very careful about cleaning and sterilisation. I had a 2 FV setup and after 2 ...
5
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1answer
71 views

Would boiled vinegar contain any acetobacter?

I love the taste of Balsamic vinegar, and I think having just a hint of it would be fantastic in a stout's flavor profile. My concern is what would happen to a beer after this is added. Would it start ...
0
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1answer
75 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, ...
3
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2answers
85 views

Yeast not settling or contamination?

Having trouble understanding what I'm looking at here (see pic): http://imgur.com/1OH9TQj Made an Amber ale with LME and used Wyeast 1332 Northwest Ale. Racked to secondary after 2 weeks to get ...
2
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3answers
102 views

Is my batch contaminated(“infected”)?

Its been fermenting for about 10 days, and I'm just now noticing these white spots. Is this what the start of an infection looks like? If so, is there anything I should do?
6
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4answers
2k views

What is this white stuff on the surface of my beer?

I've just gone to rack & bottle a witbier that has been in primary for about 5 weeks and noticed this white gunk floating on top of the beer. It doesn't look too healthy, what is it? Is it safe? ...
8
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1answer
1k views

Possibly infected mead: is it worth keeping?

I tried making cherry mead again (the first time I tried this it got infected). I tried again yesterday, and it looks like I've got some sort of contamination ("infection"). This time I thought that ...
13
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6answers
14k views

Can Infected beer cause death or major illness?

Basic question. Can you get sick and die from drinking infected brew? I know that it must taste terrible, was just wondering. Can't seem to find any references where people have died from infected ...
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4answers
2k views

Can a contaminted brew be identified by sight?

I brew ten-gallon batches of beer split into two fermentors. The last batch that I kegged had one infected fermentor, while one remained uninfected. One bucket showed a white powdery substance ...
3
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2answers
112 views

I waited 48 hours to pitch and detected fermention prior to pitching

I brewed on Monday but pitched over 48 hours later on Wednesday, because my temperature control was finicky and I wanted to wait until the wort hit the proper temperature before pitching. Normally I ...
2
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3answers
80 views

I'm worried about adding germs to my brew when dry hopping

I'm looking at these instructions - http://www.geterbrewed.com/craft-a-beer-instructions/ (I promise I'm not selling anything). In section 13, it says something along the lines of "Add the hops after ...
3
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6answers
203 views

My cooled wort got contaminated by tap water. What are the primary consequences of re-boiling?

One of the hose clamps for the cooling spiral malfunctioned, so my cooled wort got contaminated by roughly 10 liters of tap water (in a 55 L batch). This is a lager beer which will be stored for five ...