New Brunswick Craft Brewers Association
Brewing => Technique => Topic started by: Dave Savoie on August 27, 2011, 10:42:51 AM
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Does anyone know where one would get a tank filled 75% Nitro and 25% CO2 ?
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Air Liquid can fill it for you...I believe it's called Aligal gas. 75% nitro 25% CO2.
A buddy of mine uses it for all of his ales and prefers it. finer bubbles and thicker head.
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Im thinking when i build my 2 Tap mini fridge kegerator to install a stout tap as I plan to have stout on tap at all times :P the extra cost would be about $200 for Tank Regulator and Tap
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I think its called "beer gas"
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Many good quality establishmens use beer gas for all of their beers on tap. It's a bit more expensive than co2 but apparently worth it.
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It as simple as just getting Air Liquide to fill my tank with this stuff instead of CO2 next time?
Was under the impression that they won't give you liquid N2, so surely this would require tanks able to withstand higher pressure?
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you cant force carb with beer gas well yyou can butr it would take a long long time you need seperate regulator also and tank
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hmm... ok. probably won't be running with this any time soon :P
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new tank and reg about $160 ($75-$95 for stout tap)
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Yeah I'm planning to rest on my laurels re: homebrew equipment, for a while. I figure I've spent about a grand this year between ingredients and new toys :P Add that to the grand I've spent on paintball gear and yeah... SWMBO is likely to start getting angsty :evil:
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keep her intoxicated
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It as simple as just getting Air Liquide to fill my tank with this stuff instead of CO2 next time?
Was under the impression that they won't give you liquid N2, so surely this would require tanks able to withstand higher pressure?
Comparing liquid nitrogen to nitrogen is like comparing apples and hyenas ...nowhere near the same thing. seems like that beergas is kinda like plain ol' air with CO2 substituted for O2 ...(air=80% nitrogen). Incidentally, unless my memory is REALLY off the mark today, liquid nitrogen is not under pressure
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75% nitrogen 25% CO2
reason being the nitrogen allows you to push your beer at 38PSI without over carbing it
and the CO2 in it allows you to maintain proper carbonation
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yep ...pretty much air without the oxygen :wavebeer:
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Ok here's my reference point - Paintball.
In paintball we have two tanks - CO2 tanks and N2 tanks. The former contains a liquid, and the latter contains a gas (either pure N2 or plain old compressed air). Because of the behaviour of both at around room temperature, the CO2 tanks are built to withstand far less pressure than the N2 tanks (about 1000PSI versus 4.5k PSI), because the N2 is just a gas under pressure, whereas the CO2 is a mix of liquid and gas under (less) pressure. The point is to be able to deliver the same volume of gas for each kind of tank - as you might expect from say an Air Liquide fill.
Therefore if the Nitor gas stuff isn't liquid, then either the tanks are going to be much stronger (to deliver the same quantity of gas as a CO2 canister of comparable size), or the CO2 tanks were built to withstand much higher internal pressures than they really require.
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sounds to me that what you're seeing is paintball specific. In general the liquids are low pressure gasses (industrially "LP" means low pressure and not liquid propane). Traditionally, for the high pressure gasses, aluminum cylinders were rated for higher pressures than their steel counterparts ...3000psi (actually higher but 3000 is the rating) and 2250psi respectively. About 10-15 years ago high pressure steel cylinders became real popular in with the compressed air crowd (mainly divers) and they're rated at 5000psi. I'm not exactly sure what the technical difference in the cylinder itself is, but i can tell you there's a BIG difference in the valve and the way it connects to your regulator.
Again, I can't speak for the liquids but as far as the gasses go, tank size (in cubic feet) and pressure are your 2 variables for volume.
so ...if your CO2 tank is steel my guess is that it's rated for 2250psi, if it's aluminum it's rated at 3000 but I have no idea what the max pressure is for CO2.
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oops ...i forgot the whole point of all that ^ .....they MIGHT not fill a CO2 cylinder with nitrogen.
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So you're saying CO2 is a low pressure gas, whereas N2 is a high pressure gas?
Pretty sure the 20LB CO2 cylinder I have here contains liquid CO2...
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relatively speaking, yes. I know that nitrogen is filled to at least 3000psi ...most garages that do tires have it now for filling tires on the cars with tire pressure monitors. the reason they use nitrogen is that there's virtually no pressure change as it heats up, unlike air
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my buddy goes to liquid air and orders "Aligal". it's in a CO2 tank as his regulator fits on it, unlike a nitro tank. Aligal is the stuff.
Carbonating still needs to be done with CO2 though.