Nitrogen V's CO2

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PeterESB

Nitrogen V's CO2

Post by PeterESB » Thu Apr 20, 2006 4:15 pm

I was reading on here somewhere, that someone was using nitrogen for their brew. What’s nitrogen used for in brewing? :rolleyes:

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Jim
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Post by Jim » Thu Apr 20, 2006 4:23 pm

Nitrogen is used as a substitute for some of the carbon dioxide which puts the fizz in beer.

Advantages are:

-Smoother taste
-Takes longer to come out of solution (so the head lasts longer)

Draught Guinness uses a nitrogen/carbon dioxide mixture, as do the so-called 'smoothflow' beers like John Smith's Smooth.

Obviously, you can't add nitrogen to a beer naturally, so it has to be forced in under pressure in a 'keg' type system. If you have a cornie keg, you can get bottles of carbon dioxide/nitrogen mix and use it for your homebrew.

deadlydes

Post by deadlydes » Fri Apr 21, 2006 7:55 am

i dont know if i would agree with the 'smoother' taste i just think its different.
personally i dont like these smooth beers. but on the other hand i know ppl that wont touch a beer out of the cask.
its all up to your taste really

moorsd

Post by moorsd » Fri Apr 21, 2006 8:33 am

I use the widget gas system and force carbonate using a Cornie keg. This allows me to use the CO2/Nitrogen mix they do which does make the beer smoother and gives it a thick creamy head!

This is especially useful when brewing stout as it gives the finished beer that 'commercial' finishing touch over using normal CO2. I sometimes even use it when brewing Ale just to do something different...as you say Deadlydes, some people won't drink what they call "Flat" beer and do prefer the creamy head, I personally don't mind either way.

I just like to please people who drink my brew and to see their surprised look when they actually like it after expecting the taste of the usual stereotype of 'Home Brew'!!!

PeterESB

Post by PeterESB » Fri Apr 21, 2006 11:58 am

QUOTE I use the widget gas system and force carbonate using a Cornie keg. This allows me to use the CO2/Nitrogen mix they do which does make the beer smoother and gives it a thick creamy head!

Does anyony know the CO2/Nitrogen ratio :huh:

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Reg
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Post by Reg » Fri Apr 21, 2006 12:28 pm

QUOTE (Daft as a Brush @ Apr 21 2006, 12:04 PM) 70/30 (co2/n2) I beleive.
Ahh a man who understands valences! Very impressive! ;)

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Jim
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Post by Jim » Fri Apr 21, 2006 12:41 pm

QUOTE (Reg @ Apr 21 2006, 01:28 PM) QUOTE (Daft as a Brush @ Apr 21 2006, 12:04 PM) 70/30 (co2/n2) I beleive.
Ahh a man who understands valences! Very impressive! ;)
What's curtains got to do with it?? :P

moorsd

Post by moorsd » Fri Apr 21, 2006 1:37 pm

QUOTE (Daft as a Brush @ Apr 21 2006, 08:54 AM) A few of us here use pub style bottles with mig welding regulators. Depending on where you live they can be fairly easy to get hold of
Thanks DAAB that's great, I live in Ringwood (Nr Southampton) and am very interested in getting this type of 'pub' set up!!

I've looked at various articles and links on this type of set up. A while back I approached a local company called Brewgas?? But they didn't seem interested in supplying to little old me (guess you have to have larger requirements!). I like the idea because it's not only cheaper, but is a great way to impress all of your friends!!

moorsd

Post by moorsd » Fri Apr 21, 2006 2:12 pm

Hmmmm, just phoned an Air products distributor and they quoted £26.40 +VAT for the cylinder, pretty good I thought .... but then went on to say there is a rental charge of £76.65 + VAT for a year (21p per day) :o .....Think I'll keep trying!!!

moorsd

Post by moorsd » Fri Apr 21, 2006 2:27 pm

Yaaaay!! Just phoned a company in Salisbury and they quoted me a flat rate of £16.33...gonna pick one up in a mo!

Had a conversation with the guy and he is more than happy to sell to Homebrewers, all he asks is that the cylinders are looked after! Must say I wish there were more companies with this open minded attitude!!

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Reg
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Post by Reg » Fri Apr 21, 2006 2:37 pm

QUOTE (jim @ Apr 21 2006, 12:41 PM) QUOTE (Reg @ Apr 21 2006, 01:28 PM) QUOTE (Daft as a Brush @ Apr 21 2006, 12:04 PM) 70/30 (co2/n2) I beleive.
Ahh a man who understands valences! Very impressive! ;)
What's curtains got to do with it?? :P
Dependent on how you stitch them up, curtains have 1, 2, 3 or 4 ways in which they can get rucked up with other curtains... :huh: :P

moorsd

Post by moorsd » Fri Apr 21, 2006 4:13 pm

Thanks DAAB that would be fantastic!

I've just collected my CO2 cylinder, must say I was very pleasantly surprised...I was expecting to get the small knee high size for the money, but when the guy brought out the size that is waist high I couldn't believe it.....it's going to last me ages compared to the Widget cylinder!! :D

PeterESB

Post by PeterESB » Mon Apr 24, 2006 1:47 pm

Hay moorsd that sounds like a top price for a gas cylinder :lol: your have to PM me his Tel: number :D . I live just down the road from you in Bournemouth B) . May be we could all get together and form a brewing club :D , with lots of tasting’s though of course and pick each others brains. :beer

moorsd

Post by moorsd » Mon Apr 24, 2006 4:09 pm

Cheers DAAB, that's the place!

I did some phoning around originally and he was by far the cheapest, most charged a daily rental, and some just didn't want to know!

Hmmmm, Hants & Dorset homebrew association sounds an interesting idea, however think the Mrs may have something to say about it...she already thinks I'm obsessed by the hobby!! :D

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