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  1. Lyrebird_Cycles

    Measuring CO2

    Carbodoseur Measuring CO2 without very expensive equipment has always been difficult: The method of choice for DCO2 is an Anton Paar Carbo QC analyser, but at something like $10k it’s a little out of reach for most. The Zahm and Nagel comes nowhere near the AP for accuracy and precision but...
  2. Lyrebird_Cycles

    New Oxygenation Method

    I've dropped a few hints about this over the last couple of months but I've finally got around to lodging a patent application so I can reveal a little more. The idea is incredibly simple, but as usual the devil is in the details. Since beer is moderately conductive it can be used to form an...
  3. Lyrebird_Cycles

    Anyone here do app development?

    I have device I'm developing which currently uses a microcontroller to compute a control signal based on two inputs (volume and rate). Input to uC is via a keypad, display is a 2 line LCD screen. Looking to change that to control via phone / bluetooth but need someone to do the development as...
  4. Lyrebird_Cycles

    Mash Enzyme Temperature and Duration

    In a recent thread on mash enzymes I posted some information on the rate of thermal degradation of the enzymes which was possibly a little maths heavy for many readers. Thinking about ways of making this info more accessible, I came up with the idea of the enzyme Degradation Unit (DU)...
  5. Lyrebird_Cycles

    Balsamic Vinegar in Beer Form

    I admit I'm not a huge fan of the wilder end of Vlaandrian Ales but I can usually at least finish the glass without choking. Not so with this one. As the title suggests, it tastes like a sour / bretty farmhouse ale blended with sweetened balsamic vinegar. If that sounds like your thing, go for...
  6. Lyrebird_Cycles

    Potato Peel Oxygen Generator

    Following on from ADRs excellent experimentation: I foolishly left my oxygen cylinder at the winery so I needed to make up something simple and cheap. Materials and methods: h2o2_1 One strip of potato peel, one length of silicone tubing, two cable ties, 30% peroxide and a piece of stainless...
  7. Lyrebird_Cycles

    Wine Yeast: free to good home.

    I have four half kilo packs of wine yeast that aren't going to be used this vintage. They are leftovers from last year, still sealed and have a year to go on their use by dates. They've been kept under refrigeration since receipt. Two packs are R / HST (excellent for riesling, useless to me...
  8. Lyrebird_Cycles

    EOI for IBU testing.

    I'm in the process of setting up a winery laboratory for a client, we'll be including a spectro. The cost of upgrading the spectro to allow me to do some beer analyses would be covered if I could get you mob interested in doing about 100 tests for IBU at $35 each. FWIW I used to be the state...
  9. Lyrebird_Cycles

    SmasheD

    I'm sure this is old hat to many of you but I searched and couldn't find anything. Enjoying the Golden Promise / Challenger SMaSH from a couple of weeks ago, it occurred to me that it would be close to the ideal base for comparing dry hop profiles. Tried it out with a 1 g/l addition of Nelson...
  10. Lyrebird_Cycles

    TIAB (Trub In A Bag)

    TIAB Decided to try wrapping the bottom third of the immersion chiller in voile to see if it would trap some of the trub. Worked fairly well, I need to tweak a couple of things to get a better whirlpool action. The whole Motueka flowers were a bit too much to ask of it..
  11. Lyrebird_Cycles

    Unsaturated Fatty Acid as Oxy substitute

    Though it's been around for a while, I've never tried it and I'm going to give it a whirl. More info here: http://www.kotmf.com/articles/oliveoil.pdf note that at home brew scale the additions required are tiny and hard to do accurately. The active principle of the olive oil is oleic acid, I...
  12. Lyrebird_Cycles

    Towards an understanding of refractometers in wort and beer.

    As has been well documented, refractometers and densitometers give different results in wort and beer, reflected in multiple sources giving calculations for correction factors for refractometers. This first post will delve into the background of why the discrepancies exist. A follow up will give...
  13. Lyrebird_Cycles

    EOI for slotted stainless lauter plate

    The laser cutter I use are running a trial to see whether they can do these without undue distortion. Preliminary specs: Cut from 1.2mm 304 SS sheet. Slots are 0.6mm x 40mm, open area is approx 20% CAD drawing of one iteration (320mm diameter disc) above. Because these will be laser cut...
  14. Lyrebird_Cycles

    Bottle Conditioning Measurement.

    Well I decided I wanted to know more about just how long it takes to bottle condition beer, so I did a 'speriment. [/url] Day 1 [/url] Day 2 [/url] Day 3 [/url] Day 4 The answer is 3 days in the right conditions. Further info to follow
  15. Lyrebird_Cycles

    Improving precision in IBU calculations

    My thanks to MHB for suggesting this and pointing me to the paper by Malowicki in my thread on CO2 calculation. I was going to leave it be except a couple of beers made recently on a new rig using the Tinseth formula turned out to be wildly off their targets so I thought "**** it, I have to be...
  16. Lyrebird_Cycles

    Accurate prediction of CO2 content.

    I'm building a little calculator to predict CO2 content, based on some work I did a while back for something else*. I'm using the Henry's Law coefficients from this paper...
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