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I will read those studies in detail over the weekend but I would suspect that yeast will not savage much of the oxygen, especially if you are not adding fresh yeast for bottling. The main, and most misunderstood, reason for that is the fact that yeast DO NOT use oxygen for fermentation...

I believe enough of us shared their experiences here that we can conclude that purging head space is the way to go when bottling hoppy beer (I am going to be doing this with all my beers, hoppy or not) Exposure to O2 doing transfer seem to have less of an impact as time beer is exposed to O2...

That's an interesting idea but I have a feeling it would be pain in the ass to source food safe material. And how about pouring the beer? But if you find something please do test and share your observations here.

Good tip there for the folks, like myself, who are bottling cold, right after the cold crash, and decide to leave only small head space.

Yeah, I knew it couldnt be that easy. Anyways I'm very pleased with purging so no reason to risk it with filling up for me. Especialy if this holds up for another few weeks.

Yeah, I think "purging" really works well.. Flling up the bottle to the top would do similar thing i think. I'm going to leave that beer bottled to see how long will it take for purged bottle to start oxidising and will report back.

I finally did bottle conditioned NEIPA head space oxygen effects experiment as I promised a while ago. For this experiment I've made highly hopped (10g/L dry hopped) NEIPA (check the recipe here) and filled in three clear glass bottles so I can follow the color change without the need to open...

Not sure about splashing the water but tube connecting two chambers should definitely be shorter, if nothing else, to save some space, and make the rig easuer to handle. But you will have to use silicon tubes instead of vynil because vynil is more rigid and won't bend as good as silicon...

Should probably do that as well, but i found out where it was leaking - its thermowell whole.

So I have moved to a new small batch setup, have new fermenter and made co2 harvester. It's been 36h since pinching nottingham, action started less than 12h since pinching. Fermenter is 8L/2.1gal and there is about 6.5L/1.7gal of wort in there. There is no acction in the co2 harvester. I doubt...

Thank you very much. I'll hunt for some other device(s) and will probably need help from electrician, hopefully I'll be able to find someone on here because I don't know any.

Another question for those in electronics know how. The device I posted has following ratings: Peak power:4000W(Load max Power 2000W) Rated current:9A Peak current:18A And heating element in urn is: 2500w And it's made for 220V outlets so I guess it's 11.36A (???) So I guess those two devices...

Thats the answer I was hoping for :) Thanks mate. Yeah, i'm not sure if i will add temp control, not yet anyways. But tought I should ask if connecting all those peices together like that would work because I may do it in the future or someone who is reading this wants to do it now. It was just...

Thanks. I saw that and will try, but honestly people in amazon coments say all kinds of crazy stuff and I cant figure out why they do it :)

Thank you very much for the response but I still feel that changing power output would be better then going through on and off cycles with full power every time it's on ( which is how I understand pulse width modulation works). I feel it would be "healthier" for the element in the long run and I...