You Are Here:  
Keg Draft Beer Learning Center
North America (change region)
+ Reply to Thread
Results 1 to 4 of 4

Thread: why not air?

  1. 02-21-2007 08:24 AM #1
    xscash
    xscash is offline Member
    Join Date
    Feb 2007
    Posts
    22

    Default why not air?

    i tried to search for this, but found nothing.
    party pumps pump air into the keg....why do we not used compressed air instead of co2 when using a tap system?
    just looking to further my knowlege
    Reply With Quote Reply With Quote  
  2. 02-21-2007 09:35 AM #2
    edramshaw
    edramshaw is offline Super Moderator
    Join Date
    Feb 2006
    Location
    Concord, NH
    Posts
    710

    Default

    Air will change the flavor of the beer, from both oxygenating it and from introducing spoiling bacteria. Party pumps work (and so would using air in your system) only if the beer is consumed within a short period of time (8 hours or so). The other issue is that the CO2 is absorbed into the liquid which maintains the proper carbonation levels, using air would (I assume) let the beer go flat after a day or two.
    Ed
    Blue Line Draft Systems
    www.bluelinedraft.com
    Reply With Quote Reply With Quote  
  3. 02-21-2007 09:39 AM #3
    xscash
    xscash is offline Member
    Join Date
    Feb 2007
    Posts
    22

    Default

    thanks for the info...i figured that it would spoil the beer. but the going flat has me puzzled. if you put the proper pressure on the liquid.....the co2 could still come out?. i didnt know that.
    thanks again.
    Reply With Quote Reply With Quote  
  4. 02-21-2007 03:56 PM #4
    Scott Zuhse
    Scott Zuhse is offline Administrator
    Join Date
    Mar 2005
    Posts
    2,309

    Default

    Laws of gases dictate equalization of partial pressure.
    Scott Zuhse, Instructor Micro Matic Dispense Institute
    Reply With Quote Reply With Quote  
« Previous Thread | Next Thread »

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts

Forum Rules

Note:
Micro Matic’s Draft Beer Discussion forum is a public service which allows our members to share their draft beer knowledge and for visitors to view their discussions. While Micro Matic's Dispense Institute instructors and knowledgeable staff are often participates in the forum, Micro Matic does not attempt to verify information posted by members. The information which members post are personal views, and may not reflect the views of Micro Matic. Micro Matic takes no responsibility and assumes no liability for any information posted by members, or results that occur from the information. Micro Matic reserves the right to monitor, remove or edit content at its discretion.