The gravity of beer…

Posted October 26, 2013 By Landis V
Having a "little" beer.

Having a “little” beer… but not the one under measurement.

I borrowed a hydrometer and tested the gravity of the beer I’ve had bubbling away in a carboy in my basement since early May.  Yes, it has actually been running that long.  I’ve heard from a few folks that the wort (donated by a local brewery) was on the rich side.  Seems we’re getting close to finishing up now, not a lot of bubbling but still a few now and then.

The measurements were taken on 10/26/13 with the wort (is it still technically wort after five months and nearing the end of the process?) around 65°.  Unfortunately I don’t have an original gravity reading right now, but I hope to get one from someone else who worked with wort of the same lineage after next Saturday.

Watching the beer develop has piqued my interest enough that I’ve placed some orders with Midwest Supplies and Northern Brewers.  You can read up on the gravity calculations and how the alcohol content of the final product here if you are interested.  I’m still very much a novice, but the process is interesting enough I might actually take the time to see if I can understand all the influences involved – air and liquid temperature, densities of the initial and finished product, and several others I probably wouldn’t have thought about initially.

We sampled the uncarbonated beer after the measurements, and the flavor is unique but not bad.  There’s enough jalapeno in it that you get the flavor without the burn.  Somehow it comes across to me as having a salty taste.  Looking forward to bottling it in the near future and eventually seeing how it comes out once it has some carbonation.

Gravity reading from 10/26/13 near the end of fermentation on my first batch of beer.  Wort around 65°, better picture than the previous one.

Gravity reading from 10/26/13 near the end of fermentation on my first batch of beer. “Wort” around 65°.

Potential alcohol reading on the hydrometer, 10/26/13.  There's not a whole lot of "potential" left.

Potential alcohol reading on the hydrometer, 10/26/13. There’s not a whole lot of “potential” left.

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Brewing, the “official” start

Posted October 25, 2013 By Landis V

I finally followed through on something I’ve investigated several times over the past few months and made an investment in some basic brewing supplies.  I’ve had a batch of honey wheat with a portion of jalapeno ale fermenting in my basement for just over five and a half months now in a borrowed carboy.  It’s still bubbling a little, but I’d really like to get it off the yeast cake and see if I can get it bottled yet this year.

Given the need for a secondary fermenter to rack off to, in combination with having had the opportunity to sample a mead at the event where I received the aforementioned honey wheat jalapeno wort, a longstanding fascination with mead, and the rumor of a local informational session on mead production, I ordered a starter kit and some miscellany from Midwest Supply and took advantage of a buy-one-get-one deal on PET carboys at Northern Brewers.

I’ve also been doing a little reading on meadmaking this evening and wanted to keep track of a few notes from my initial reading, in order to perhaps be a little bit prepared for the upcoming meadmaking session.

  • Mead yeast – Lalvin D-47
    • Plus yeast nutrient and yeast energizer
  • 12-20 lbs honey for a five gallon run of mead
  • http://www.stormthecastle.com/mead/ – site with a number of good mead related posts and some interesting links.
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Tacacs + AD + CentOS = FREE | packetroute

Posted October 21, 2013 By Landis V

http://packetroute.wordpress.com/2012/12/12/tacacs-ad-centos-free/

Pretty complete guide to getting Marc Huber’s tac_plus set up on a CentOS box. Need to give this a shot in an LXC container at some point.

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Smelting Furnace

Posted October 21, 2013 By Landis V

http://www.sparetimelabs.com/newfurnace2/newfurnace2.php

Looks like some good design ideas in the event I ever get around to doing something like this.  Some other interesting reading here as well if I ever get around to setting up my feed reader.

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99 Life Hacks That Could Make Your Life Easier

Posted October 18, 2013 By Landis V

http://favmy.com/2013/10/12/photos/1381567607/

Some good things to keep track of, though unfortunately I’ll probably never remember that they are on this list at a time when they would be useful.

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Pogo unit as headless barcode scanner

Posted October 13, 2013 By Landis V

Now that I have a couple of Pogo devices up and running with at least a basic Linux OS, I’m starting to think about getting one of them running as a headless USB barcode scanner.  I installed usbutils on the Pogo (‘sudo apt-get install usbutils’) and am able to view its details with a ‘lsusb’, especially followed by a ‘lsusb -v -s <busnum>:<devnum>’.   I’d like to set up a (probably Perl, though I really do need to at least tinker with Ruby at some point) script to “listen” to the scanner and receive any input from it (i.e., barcode data it has scanned).  The script would then determine what to do with that data based upon a database lookup.  Scanning of grocery items, for example, might add them to an inventory for updating, while scanning of the serial number barcodes on my Black & Decker Matrix 20V Lithium batteries could trigger an entry that a particular battery serial number was charged on a particular date (so I can make sure they are charged periodically as per the user guide).

Some references from my initial research this evening:

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DNS questions for Cisco IOS DNS server

Posted October 13, 2013 By Landis V
  • Caching:  Does the IOS DNS server cache TXT and SRV records?  How about negative caching (DNS NCACHE, RFC2308)?
    • ANSWER (partial):  Yes, it appears that at the very least it supports caching of TXT and SRV records.
  • Which provides better DNS behavior for clients – assigning a search list to the client, or having the router act as a forwarder and check the search domains itself?  Pros and cons for each?
    • ANSWER (partial):  It doesn’t appear that IOS actually postpends the search suffixes for some reason.  Eventually I will go back and attempt to address this; at the moment I suspect it’s my configuration rather than a Cisco bug, but as easy as it seems to be to hit bugs in IOS code anymore, I won’t completely rule that out.
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