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  1. kohalajohn

    Stuck pump

    This is a newish Brewzilla gen 4, 35 liter. This was my first stuck pump. I think the culprit was crushed grains of paradise. The black seeds are in the photos below. Doesn't matter. The pump took out most of the wort, enough so my fermantation keg is filled and going fine. But then...
  2. kohalajohn

    Purging Oxygen from a Keg by Pressure Only - the calculations to determine time

    That is very helpful From that, it seems that a fermenting keg can fully purge a connected serving keg, I had thought that pushing through a keg full of sanitizer was required. But maybe not. I’m sure there will be controversy on this.
  3. kohalajohn

    How much oxygen gets introduced to the wort when you add the grains?

    Also, I am curious about what BrewTan actually does. I see comments that it helps with the effects of copper chillers, and that SS chillers do not need this help. Does BrewTan, which I think is just tannic acid, interfere with the reaction between copper and oils? I know that in cooking...
  4. kohalajohn

    How much oxygen gets introduced to the wort when you add the grains?

    I have sms and have ordered Brewtan. At what stages would they be added? I have a copper chiller that I will use to chill the boiling strike water and then again to chill the boiled wort
  5. kohalajohn

    How much oxygen gets introduced to the wort when you add the grains?

    I’m not aware of the trifecta. What is it, please
  6. kohalajohn

    Poor man's hop bong

    Yes, it’s starting to look like the bong is the preferred route. Plus the pet bottle for liquids. One member did mention a hopper. I can see how that would be better than just the tc opening. A large funnel holding a large volume of gas which is overflowing. Slowly submerge the hops...
  7. kohalajohn

    Poor man's hop bong

    Very nice. I am going to build one of those
  8. kohalajohn

    Poor man's hop bong

    I put that bong unit on my wish list. But in the meantime, my question is this: Some folk are just using positive pressure when adding items on the cold side. Wouldn't that be enough? While a bong looks cool and fun, positive pressure is effectively used in labs to keep outside things from...
  9. kohalajohn

    Poor man's hop bong

    Very interesting, thanks
  10. kohalajohn

    Poor man's hop bong

    While I"m not full on lodo yet, I do like the idea of keeping the atmosphere out of my beer. Hop bongs are pricey. And they don't help you introduce liquids, just hops. I ordered a keg lid with a 1.5 inch tri clover top. The idea is that I use this lid on my fermenting keg. When it...
  11. kohalajohn

    Is a filter necessary in a dip tube?

    Update. I have been using it. Very happy with it. In fact it solved a problem this morning. I was trying to do a closed transfer from fermenter to serving keg. Everything was set up right for it, but I could not get the syphon going. Finally I took up the liquid post and pulled out...
  12. kohalajohn

    Cold Crash Suckback Issue - Resolved

    As promised, photo of the situation post crash. Yeah, starting the cold crash with a pressurized vessel does the trick. I ferment under pressure, in cornies, with a spunding valve. I was at about 10 psi before the crash. After two days at 38f I was down to 5 psi. That big drop in pressure...
  13. kohalajohn

    Thinkjng of downsizing from 3v to BIAB, any downsides?

    I would like to learn more about scaling down. Currently I am doing full volume, no sparge. I imagine that the main grain item is the one that is increased. Can you direct me to the brewing software to calculate this. thx
  14. kohalajohn

    Is the dead space really a problem when doing a full volume mash?

    I must say, it's been a journey, this efficiency thing. When I recently returned to brewing I saw this talk of varying efficiencies and thought it was the goal. That if I could not reach high efficiency numbers that meant I was a bad man, with a shameful secret and that the internet would...
  15. kohalajohn

    Is the dead space really a problem when doing a full volume mash?

    Thanks. @doug293cz , I'm not going to bother.
  16. kohalajohn

    Is the dead space really a problem when doing a full volume mash?

    I see Bobbi has a sophisticated method of diverting recirc both over the bed and in between the walls. My question is there much benefit to just shoving in a separate hose, a couple times during the mash? I have a second metal recirc arm and elbow and a thin hose on it, that fits in the...
  17. kohalajohn

    Cold Crash Suckback Issue - Resolved

    I'll report back on how it goes.
  18. kohalajohn

    Cold Crash Suckback Issue - Resolved

    But I ferment under pressure, at 12psi. But I'm not a math spreadsheet guy. I'll have to find out in a few days from now.
  19. kohalajohn

    Cold Crash Suckback Issue - Resolved

    Well, I dont think that was in the recipe.
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