Hi, this has been talked about before but I'm in the process of starting a new brewery. Is there a simple (ish) solution? We will have a nitrogen capture system. I would love to serve true Nitro stouts and porters... Any thoughts?
Announcement
Collapse
No announcement yet.
Nitrogen "carbonation" for stouts etc
Collapse
X
-
-
Assuming that this is draft stout...
Spund carb the stout to about 5 psi and complete fermentation. Crash cool to 34F and maintain 5 psi and allow to settle yeast and drop out. Rack to bright tank with a sock screen and allow to settle again; hold at 5 psi and 34F until ready to keg. Bring pressure to 15 psi head pressure and keg off.
Serve at 45-50F under nitrogen/CO2 blended gas 70/30 at 20-22 psi through a nitro faucet.
There isn't any actual nitrogen dissolved in the beer. The Nitrogen blend keeps the stout at the right low carbonation level and at higher pressure to allow a creamy breakout of CO2 and foam.
Adjust temp and pressure until a perfect pour.Todd G Hicks
BeerDenizen Brewing Services
-
Originally posted by Todd Hicks View PostAssuming that this is draft stout...
Spund carb the stout to about 5 psi and complete fermentation. Crash cool to 34F and maintain 5 psi and allow to settle yeast and drop out. Rack to bright tank with a sock screen and allow to settle again; hold at 5 psi and 34F until ready to keg. Bring pressure to 15 psi head pressure and keg off.
Serve at 45-50F under nitrogen/CO2 blended gas 70/30 at 20-22 psi through a nitro faucet.
There isn't any actual nitrogen dissolved in the beer. The Nitrogen blend keeps the stout at the right low carbonation level and at higher pressure to allow a creamy breakout of CO2 and foam.
Adjust temp and pressure until a perfect pour.
Comment
-
Many ways to do this.
Basically start with a beer/stout about 1.3-1.5 vol CO2 and then nitrogenate to saturation.
That can happen a number of ways: a custom nitrogenation plant (basically creates an extremely high pressure environment by a multi stage centrifugal in a narrow tube matrix that drives N2 into solution - classic solution) or you could use a contactor membrane (a bit pricey but works at the molecular level at low pressure), you could also use a cellarstream (to nitrogenate on the way from the keg to tap), using it inline if you have 2 bar+ rated systems.
I have done it all ways. COntactor membrane is easiest and best.
Any way you do it, remember that the solubility of N2 is miniscule. Also remember PV=nRT.
Pax.
LiamLiam McKenna
www.yellowbellybrewery.com
Comment
-
Carbonate the beer with regular old CO2 to 1.8 Volumes. Over the next 2 days degass the tank and use straight food grade nitrogen and bump it through the carb stone to whatever max pressure your tank can handle. (6-8 times over 2 days works fine). If you can connect a nitro tap to the tank it makes it that much easier to know when its done. TC Barb to tubing (6ish feet) to a nitro tap. Push the beer at 25 or so PSI. You know its ready when you get that perfect Guiness style pour. Package the beer by using nitorogen on the tank and serve it with a good 70/30 beergas blend to keep the remaining co2 in the beer and keep it from going flat.
Comment
-
Have you considered NitroBrew? Simply connect the beer (flat, non-carbonated) and N2 to the NitroBrew module. The system infuses N2 and sends the product to serving tap. N2 infusion happens on the fly, and only in the beer that is served in the glass. More information here;
Mechanical Engineer, QuantiPerm
www.quantiperm.com
Comment
-
Originally posted by vinaykumar27 View PostHave you considered NitroBrew? Simply connect the beer (flat, non-carbonated) and N2 to the NitroBrew module. The system infuses N2 and sends the product to serving tap. N2 infusion happens on the fly, and only in the beer that is served in the glass. More information here;
https://nitrobrew.com/product/nitrob...fusion-module/
Comment
-
Originally posted by Thirsty_Monk View Post
If you inject flat beer with nitrogen at the serving time, you will have flat/dead beer. You need to have about 1.7 volumes of CO2.Mechanical Engineer, QuantiPerm
www.quantiperm.com
Comment
-
Originally posted by liammckenna View PostNitrobrew can be great in a brewpub scenario. Not so useful in a production brewery. Take abundant care. Pax. Liam
If you want to nitro in the brewery tanks, then depending on the batch sizes there are various options on the xFlow product line that can do Nitrogenation, carbonation, or even de-oxygenation.
More information here: https://quantiperm.com/quantiperm-products/carbonation-frementation-brewing/Mechanical Engineer, QuantiPerm
www.quantiperm.com
Comment
Comment