Questions tagged [bacteria]

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2
votes
1answer
53 views

Pitching kombucha starter instead of yeast

My friend recently gave me the idea of making a kombucha-inoculated beer. Having never done it before, the principle seems fairly straightforward to me (this is my own guesswork): Ferment kombucha as ...
2
votes
3answers
91 views

Help me debug my Christmas Ale band-aid flavor

Recently I brewed two batches of a copycat Christmas Ale. You can ignore the recipe's water adjustments, since I didn't do them. Before fermenting, the wort smelled and tasted perfect - just the ...
2
votes
1answer
70 views

Which yeast/bacteria produce no, or little alcohol (like Bionade)?

Producing a variety of different beer styles, we are able make adult friends happy, however children are left out :( I therefore wanted to ask if somebody knows where to look for yeasts that are not ...
2
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2answers
319 views

Beer's susceptibility to contamination over time?

I'm curious if anyone has any information about beers susceptibility to infection over time/stages of fermentation? My understanding is than beer becomes less susceptible over time but I specifically ...
4
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1answer
120 views

Changing the PH of mead for fermenting necessary?

I’m currently creating a batch of mead. I’ve watched a lot of videos about the process. I’ve seen some people do it because they said you need to have it between 3.6 and 3.9 ph. And some just don’t ...
4
votes
1answer
148 views

Got major infection in my brew

Something crazy happened. Out of my last 8 batches of mead and beer 6 came out infected. I am cleaning my equipment with PBW and sanitizing with Starsan. I make my batches in the kitchen (both beer ...
1
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3answers
105 views

What bacteria species grow in brewing conditions?

My last two batches have been infected with a bacteria infection. I'm curious what species of bacteria could survive the alcoholic conditions of the brew? The first infected batch appear to have ...
4
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2answers
151 views

Are there levels of infection in a beer or is it a case that it's either “infected” or “not infected”?

I am trying to understand the nature of infections in beer. I find it difficult to imagine ( considering there are wild yeasts and moulds and micro-organisms in the air - aren't there? ) a scenario ...
0
votes
1answer
450 views

Does High Sugar Concentration Inhibits Bacterial growth?

About a month ago, I started making a dairy-free drink with blended fruit (i.e. Strawberries, Raspberries, etc). I'd like to start lacto-fermenting these smoothies but a friend of mine insists that ...
0
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2answers
306 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, ...
1
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3answers
393 views

Is juiced Ginger root fermentable?

I occasionally use a juicer to make Ginger root juice (which is quite strong) but lately I've also considered lacto-fermenting this juice. Which leads me to my question:How fermentable is juiced ...
1
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1answer
289 views

Vacuum sealing harvested yeast

Looking at this video I had the idea of vacuum sealing yeast that I harvest from my beer batches to better protect it from bacteria/mold. My plan is to rinse the yeast with boiled (sanitized) water ...
2
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1answer
289 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 cake ...
1
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1answer
2k views

Flowers of Wine (Problem)

Context: I am currently working on a batch of jalapeno-cranberry wine. It's been in primary for five days so far and I am beginning to suspect I have flowers in my wine. I was not too concerned ...
1
vote
1answer
4k 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 ...
3
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4answers
10k views

What is the ginger bug, actually?

Recipes for spontaneous (wild) ginger ale sometimes refer to the starter as the "ginger bug". What is the ginger bug? Is it just an ordinary lactobacillus; is it a type of yeast? Is it something that ...
5
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4answers
3k 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 ...
3
votes
3answers
282 views

How to chill wort

I have made a few batches of beer from those home brew kits sold at Brew n Grow. When I cook the beer, I only am boiling 2.5 gallons instead of the whole 5, per instructions, and then I add the other ...
6
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5answers
2k views

Is it necessary to heat honey when using it in cider?

I was going to buy some pasteurized, natural, no preservatives added cider and throw some honey in it to bump up the gravity. I plan on pitching some pretty voracious yeast, so figure any bacteria in ...
1
vote
1answer
457 views

End of Fermentation?

I emailed this to the Mr. Beer beermaster, but I figured I'd ask here as well. For my Doppelbock 7.0, this Sunday will make it 3 weeks in the keg for fermentation. The previous beer I made was a pale ...
6
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4answers
28k views

Whats the difference between yeast and bacteria?

I know that in a very general sense, yeast = good, bacteria = bad. But why is this? Do bacteria produce alcohol like yeast? Is yeast a subset of all bacteria, or vice versa?
2
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3answers
2k views

Can you brew using a mini Yorkshire Square?

Is it possible to brew using the same method as a Yorkshire Square but at home? Since the entire thing is open to the air, it seems like it would be a lot easier to brew like this instead of spending ...
11
votes
6answers
19k views

Tap Water: Safe to use without boiling? [duplicate]

I made my first batch of beer over the weekend. I didn't have quite enough bottled water on hand to add to my wort to make 5 gallons, so I used tap water. I sanitized the hose sprayer on my sink by ...