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  1. C

    DIY inline refractometer

    I've just been working on a little attempt at using a normal refractometer 'inline' so that I can measure the brix of the wort during mashing and sparging. Today I just conducted a simple test heating water from around 17C to just below 70C before the pi crashed, I believe because of how I'd...
  2. C

    Starch haze question

    Hi, I'm just wondering, say wort had starch haze after mashing, would the wort remain hazy after both mash and boil. So I mean, if the wort after boiling and using protofloc, was crystal clear, it would be unlikely that after fermentation, the cause of haze would be starch related? Cheers!
  3. C

    Packaged DO ppb values

    I'm curious what ppb values people are getting for DO after kegging/..? Has anyone compared the same brewing process with using Metabisulfite and not using it, in terms of packaged O2? It sounds like in a commercial brewery they can achieve around 100ppb or less. Cheers
  4. C

    Colour of boiled hops in just water seems wrong

    Hi, I'm just wondering if anyone has got any ideas here. I boiled 30l of water (this wasn't wort, just plain water) for approx. 45 mins with 100g of pellet hops in a hop spider. I've extracted around 20l of water, but the water appears pretty dark brown, which doesn't seem right to me, as it...
  5. C

    Mixed apparent attenuation calculation

    Hi, I'm wondering if anyone could point me in the right direction. I know if I just have say 10kg sucrose in 20l of water, I can get an OG of 1.19195. And calculate FG with an apparent attenuation of 122%: 1.19195-(((1.19195-1)*(122/100))) = 0.957771 FG Also if I have a wort...
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