2nd Fermentation In The Fermenter...

[Dacky]

Hi all,

Would I be able to do the second fermintation in the fermenter by dropping in the right rate of carbination drops and sealing it all up?

My idea is then to use it as a keg at a party or something?

Please let me know if I am on the wrong track here...

Cheers

 

[manticle]

There are a number of issues with that. Plastic is semi-permeable so gas will eventually escape. You'd need to time things very well (and natural carbonation can take two days or two weeks). If you were going to store it for any length of time then the gas would quickly dissipate. However because it's for a specific event you might have an outside chance.

Might work but there's a good chance it won't. If you have time try it with another brew and see. Then if it doesn't you can bottle the one you intend to serve at the wedding.

Make friends with a brewer who kegs and get them to help you put it in a keg. It might look a bit nicer than a big plastic container on the bar anyway.

 

[kelbygreen]

you will need to get it off the yeast cake other wise you will get autolysis. plus seal the airlock hole as it needs to carbonate under pressure. I doubt it would work but you could try. Also I think kegs (could be wrong) are carbonated first then hooked up to taps so not sure if pouring beer out off a tap with no pressure will give you flat beer or not. I would also suspect you would need minimal air gap for it to carbonate. Most that answer is guessing so dont take it to seriously lol

 

[Dacky]

Its not for a wedding or anything fancy - I just though of it when I was thinking about having a BBQ with mates on Australia Day and how good it would be to drink from the keg...

How do the plastic bottles go when people use them to bottle their brews (I use glass). Do they have a limited life span too?

 

[Dacky]

you will get autolysis

What is this?

 

[warra48]

What is this?

It's the yeast breaking down after a period, and causing various off flavours and aromas etc in your beer.

Here's a link which might be useful.

http://www.draymans.com/articles/arts/16.html

 

[manticle]

Autolysis is not a massive concern unless you have the brew sitting on the primary yeast cake for a month or more. It's not assured that it will happen even then.

@OP - sorry, for some reason my mind read 'wedding' instead of party.

Many people bottle in PET with no dramas. As long as you decant (pour into jug or bottle) then they are fine. Supposedly there can be issues with permeability and gas seepage over long term (read a year or more) but for most purposes they are entirely adequate.

 

[Screwtop]

Cranky old prick at the best of times, been to a funeral today so excuse me if I'm a little over the top, but.....

FFS.....................Hello.......................doesn't anyone see the glaringly fcuking obvious here.

80Kpa in a Plastic screw lid fermenter....................Ka Fcuking Boom


Grumble mumble grumble.

 

[bum]

Many people bottle in PET with no dramas. As long as you decant (pour into jug or bottle) then they are fine.

As far as the reasons to decant go I have noticed no difference between PET and glass personally.

 

[Adamt]

1. As Screwtop has said... the container will not hold enough pressure to carbonate it.

2. If you managed to carbonate it, when you open the tap it'd blast out of there with a speed like a shaken bottle of champers.

 

[bum]

2. If you managed to carbonate it, when you open the tap it'd blast out of there with a speed like a shaken bottle of champers.

Why is this? Surely under his idea (which, for the record, I don't think it a good one) he's only going to be carbing up to bottle pressure.

 

[Screwtop]

he's only going to be carbing up to bottle pressure.

Which would be ????????????????????

 

[bum]

Not arguing the pressure quoted. Just asking why the same pressure would cause a foamy jet of beer in a different vessel. Was a serious question - not a call-out or something.

 

[manticle]

Cranky old prick at the best of times, been to a funeral today so excuse me if I'm a little over the top, but.....

FFS.....................Hello.......................doesn't anyone see the glaringly fcuking obvious here.

80Kpa in a Plastic screw lid fermenter....................Ka Fcuking Boom


Grumble mumble grumble.

My impression was he's adding 120-180g of dex/sucrose to 23 odd litres of fermented beer but instead of bottling he's leaving it in there till it's fizzy. Is there a chance of that going kaboom?

No worries about the cranky - best way to learn is from cranky pricks who are still happy to share their knowledge.

 

[Adamt]

Not arguing the pressure quoted. Just asking why the same pressure would cause a foamy jet of beer in a different vessel. Was a serious question - not a call-out or something.

Do you ever open a bottle upside down over a glass? You will have to add hydrostatic pressure from the height of beer in the vessel.. at about 100Pa per centimeter.

Also, the internal build of the tap would provide some nice nucleation points.

 

[Adamt]

My impression was he's adding 120-180g of dex/sucrose to 23 odd litres of fermented beer but instead of bottling he's leaving it in there till it's fizzy. Is there a chance of that going kaboom?

No worries about the cranky - best way to learn is from cranky pricks who are still happy to share their knowledge.

The lid thread won't handle it and the lid will likely pop off before it finishes carbonating. That would be the best case scenario. The worse case would be that the tap would be forced out of the thread, making a large mess. There's a reason why we use kegs

 

[bum]

Do you ever open a bottle upside down over a glass?

Can't say that I do. Brb.

You will have to add hydrostatic pressure from the height of beer in the vessel.. at about 100Pa per centimeter.

Also, the internal build of the tap would provide some nice nucleation points.

Ah. I won't pretend I understand the reason why the first bit happens but I am happy to accept it as being correct. Cheers. As for the second, yeah, I should have thought of that myself.

 

[manticle]

The lid thread won't handle it and the lid will likely pop off before it finishes carbonating. That would be the best case scenario. The worse case would be that the tap would be forced out of the thread, making a large mess. There's a reason why we use kegs

I had no idea as trying to drink from a carbonated fermenter never really occurred to me.

Cheers. A little bit more knowledge every day.

 

[Bribie G]

No I'm not going to post my famous picture, but you can bottle off a brew in 12 x 2L PET bottles, such as 99 cent Cola from ALDI. (tip the cola, it's cheap enough) Great for party usage, just serve into a 3L jug and it's as good as draught beer and you don't end up with 30 or more empties at the end of the night.

Prime each 2L with 3 sugar cubes and bobs yer uncle.

 

[Screwtop]

Not arguing the pressure quoted. Just asking why the same pressure would cause a foamy jet of beer in a different vessel. Was a serious question - not a call-out or something.

Sorry, was commenting on your answer re pressure. As far as the foamy jet, maybe you don't keg and therefore are not thinking about the length of hose and diameter required to balance a draught system so as to reduce foaming. Serving of beer from pressurised containers is just not as simple as opening a tap. Main problem posed by the OP question is that the container in question will not contain the pressure required for carbonation. If it could, serving directly would not be possible without system modification, refrigeration, and addition of delivery tubing and a pouring tap. The guy asked a question and in reply got page one text book autolysis warnings FFS.


Screwy