Questions tagged [oxidation]

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7
votes
3answers
5k views

Should I purge my carboy with CO2 before racking to secondary?

I'm thinking this might help prevent oxidation.
7
votes
2answers
912 views

Is oxidation of yeast starters a concern?

We all know oxidation is bad, and cooling hot wort is particularly susceptible to this off-flavor-producing problem. the question is; does oxidation matter for starters? I use a stirplate to aerate ...
6
votes
3answers
2k views

Oxidation during bottling

I had some issues with siphoning last night, so it took about an hour to rack from the carboy to bottling bucket. Should I be worried about oxidation? Both containers were open that entire time. ...
6
votes
3answers
2k views

Bubbles in my racking cane.

I've been having some racking issues lately, I can't seem to get a steady flow through the cane and tubing. Would the bubbles or air gaps that I see in the tubing cause oxidation? Moving forward, ...
5
votes
4answers
2k views

How to oxidize my beer during transfer

Let's assume I've read all I can about the pros and cons of racking my beer from primary to secondary and I've decided that I want my lager clear and I'm going to rack away. I've brewed a dozen ...
5
votes
2answers
878 views

Lagering in plastic carboy vs glass

I use plastic PET carboys ("Better Bottle" brand) for fermentation, mainly because they're cheaper, lighter, and safer. I use only chemicals to clean them (no brushes), so I'm not too worried about ...
5
votes
3answers
1k views

Cold crash with airlock or not

While cold crashing is it right to use a lid with an airlock?Do we risk to get oxygen in the fermentor fron the airlock(and as a result to oxidize our beer) while co2 leaves free space as it "goes" in ...
4
votes
1answer
80 views

Could this have oxidized the beer?

While getting a sample of beer for a hydrometer reading, I squeezed the turkey baster while it was in the beer, so it caused a bunch of bubbles. I did that twice. Anything to worry about?
4
votes
4answers
377 views

Is oxidation beneficial to any beer style or characteristic other than sour?

Our club now has three oak barrels, and while at least one is going to be dedicated to a solera, we'd like to try a couple other brews before we resort to two more soleras. Barrels are known to let ...
4
votes
3answers
149 views

What's the best way to ship bottles of beer 3000km in hot weather?

I'm worried not so much about breakage/leakage as you can just take precautions with extra padding and good packaging, but more about oxidation with the bottles being shaken up during hot weather. We'...
3
votes
2answers
621 views

Oxidation of red wine during racking and bottling

I am making a red wine from grapes, the way I did it is, I let the grapes in the wine for 15 days before taking them out in order to extract more colour and tannins and then I racked the wine off its ...
3
votes
1answer
131 views

Worried about oxidation

I'm brewing my second batch and had a bit of an accident yesterday. I brewed 20l two days ago and when I checked my fermenter (bucket) yesterday it had overflown. I don't know what possessed me to ...
3
votes
2answers
148 views

Too late to move a brew?

I brewed an IPA yesterday. All went well and it is bubbling away today. However, my friend's brewing fridge/fermenting chamber just freed up and he suggested putting my brew in there. It would ...
3
votes
3answers
2k views

Oxidization during transfer

It has become clear that I need to practice my transfer techniques; I just completed a primary-to-secondary transfer which involved what I'm guessing is a fairly significant amount of aeration. ...
2
votes
3answers
237 views

How badly did I oxidize my beer?

I think I oxidized my whole keg. I was attempting a closed transfer but the beer stopped going into the keg so I decided to change the tube but totally forgot about the air in the tube. So when I ...
2
votes
2answers
52 views

Is falling bad for fermentation?

The shelf in my fridge broke, dropping my fermenter something like 10-20cm, all though he is still close, can it oxidise my beer? The wort was 2 days into the fermentation process and the yeast is ...
2
votes
2answers
805 views

Sealing flip-top bottles with wax

I just started brewing a batch of mead (non-carbonated) and plan to bottle it in 1 L and 500 mL swing-top bottles. Is there any advantage or disadvantage to sealing the swing-tops by dipping them in ...
2
votes
1answer
150 views

Oxidation during long primary

So obviously I'm reading all o the advice floating around to skip racking to secondary. And it makes perfect sense. But if I primary a 5 gal batch in a 6.5 gal bucket, does the headspace/surface area ...
2
votes
1answer
960 views

Why do people purge kegs before force carbonating?

What is the point in "burping" a keg right before force carbonating it? When the co2 hits the keg during carbonation it is going to provide a protective blanket to any air above it. I am confused ...
2
votes
3answers
107 views

Old homegrown hops

I have been growing and using my own hops for a couple of years now. after harvesting this year I left them out to dry, they have been drying now for a little to long (about two months) they are all ...
2
votes
2answers
402 views

Cold crashing and risk of oxidation

I'm brewing a Belgian golden strong ale for the first time. According to the fermentation schedule, it should cold crash and lager at 32°F (0°C) for three weeks. Even though I've cold crashed before, ...
2
votes
2answers
183 views

Effect of temperatures over beer oxidation

Does temperature affect the oxidation of a beer ? Is a beer at a high temperature, let's say 30C (86F), more susceptible to oxidation that one in low temperature near 0C (32F) ?
2
votes
1answer
815 views

Filtering using a keg and a carboy instead of two kegs

I've read that filtering requires two kegs. I've only got one corny keg but I'd like to filter my brew with a canister or plate filter. Do I risk overly oxidizing the beer if I were to filter from a ...
2
votes
2answers
49 views

Oxidation in Secondary Fermenter

I have a question about the liklihood of oxidation during secondary fermenting. I'm brewing a NEIPA, second brew ever, from NorthernBrewer. OG 1.068, now 1.032 after 15 days in primary. Directions ...
2
votes
1answer
86 views

Where tanins are good in beers?

Although tanin gives an unpleasant astringent effect in beers, in wines - also, but - it is known as antioxidant and protector against UV light. So, in beers can tanins also be welcome at least ...
2
votes
2answers
449 views

Adding strawberries to half of a batch - too much oxidation in carboy?

I am currently fermenting a blonde ale, and I was thinking of adding strawberries after primary fermentation. However I don't want a full batch of stawberry ale, so I plan to rack only half of the 5 ...
1
vote
2answers
181 views

O2-absorbing crowns - do they absorb other things?

I have tried long-term aged beers (year or more) side by side, one with o2-absorbing crowns, one without, and swear by the difference. While it seems you want some oxidation in a long-term-aged beer, ...
1
vote
1answer
68 views

Camping and Brewing

So I have a big bumper pull camper that I travel around the country with. I was thinking about a camping trip with some buddies and was considering the implications of perhaps starting a brew while ...
1
vote
1answer
57 views

Does oxydation contribute to the acidicity of raw pressed apple juice?

When mashing apples with a rotary masher, the mash and juice gets quite oxygenated. Does this contribute to the acidicity of the raw apple juice?
1
vote
1answer
359 views

Is the air glug in a conical not causing oxidation?

This is likely a silly question to a lot of you but I'm trying to weigh the pros and cons, no matter how minor, of a conical before I make the jump. I'm maybe too paranoid about oxidation, but one of ...
1
vote
1answer
1k views

using a 6 gallon carboy as a secondary when brewing 5 gallons of beer

I have a 5 gallon glass carboy that I use for a secondary when making 5 gallon batches. I would love to get two batches of beer going at a time and I have a 6 gallon carboy that I've used for wine. ...
1
vote
1answer
79 views

Recycling Screw-top Bottles for Homebrew

With my budget being somewhat limited I can only really afford to put my wine into sanitised used bottles from store bought wine, rather than proper bottles with corks. My main concern is oxidation ...
1
vote
1answer
2k views

How long to wait to bottle after adding sulfites?

When adding sulfites to a wine, mead, or cider prior to bottling for oxidation prevention, how long should you wait after adding the sulfites before transferring to bottles? Is there a set amount of ...
0
votes
2answers
174 views

What do I risk for leaving my beer exposed to open air through the airlock hole?

I brew away from home, and last weekend I has to rush away before I was completely racking from primary to secondary. I can only go back in about 10 days. As a result, my beer is now sitting in a ...
0
votes
2answers
849 views

Is my beer oxidized?

I brewed a batch of bitter 5 weeks ago, simple recipe with 90 % pale malt and 10 % crystal. IBU is aout 30. I have brewed this beer before, and it was great. Everything went perfect, up until I ...