HOMEBREW Digest #5675 Tue 20 April 2010

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  Re: Pilsner bittering hop ("Pat Casey")
  air driven diaphragm pump for filling (Matt)

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---------------------------------------------------------------------- Date: Tue, 6 Apr 2010 13:28:25 +1000 From: "Pat Casey" <pat at bmbrews.com.au> Subject: Re: Pilsner bittering hop Rowan, Either Perle or Northern Brewer for orthodoxy. You could also try Amarillo or Cascade - both of these hops go well with Saaz. Centennial could also be a possibility. Remember you are using these hops as bittering, not aroma hops so restraint is necessary. Generally I use only two hop additions, 45 and 3 minutes. One of my little "rules" is to use approximately equal weights of the two hops at 45 minutes, and certainly to not let the weight of the bittering hop exceed more than half the weight of hops used overall. Pat www.AbsoluteHomebrew.com.au Return to table of contents
Date: Tue, 20 Apr 2010 09:15:30 -0700 (PDT) From: Matt <baumssl27 at yahoo.com> Subject: air driven diaphragm pump for filling I had an idea for bottling beer from vessels that are too heavy to move and can't be pressurized (such as a wine demijohn). I believe little air-driven diaphragm pumps (such as Grainger Item 2ERY7) can provide beer flow at constant pressure, and have no problem when a valve is shut on their outlet. They are also self priming. Suppose we connect the pump's inlet a racking cane in our beer vessel, and connect the outlet to a filling apparatus (perhaps as simple as a spring-type filling wand). Can we now just turn on the pump and start filling bottles to our heart's content? It seems that connecting a pump in this way is almost equivalent to putting constant top pressure on the beer vessel. The one problem I can think of offhand is that the pump may not work at sufficiently low pressures (and thus dispense beer way too fast). But this could probably be solved by adding some friction or choke to the outlet. The other issue is that you need a nice air compressor. Beyond that, though, am I missing any major obstacles? Matt Return to table of contents
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