9 replies to this topic

[Big Nake]

Okay, maybe not really test results but something I recently tried. We have had conversations about those people who close-transfer wort or push beer from one keg to another, etc. I have always open-transferred wort to primary, open-transferred primary beer to secondary and also to a keg. Some of you guys winced a little with that and I assume the issue would be oxidation. I figured that one thing I had the ability to do was purge the keg before I rack to it. So for the last 15-20 kegs I have made, I go to my brew bunker and fill the just-cleaned-and-sanitized keg with CO2 from my 20# tank. Bleed it, fill it again, etc. Then I open it and do the open transfer with racking cane & tubing into the [foggy] keg. I wondered if I would notice an improvement from doing this. Nope. I didn't think I was having any oxidation issues anyway but I detect NO DIFFERENCE and I didn't really expect to. Thoughts?

[neddles]

Okay, maybe not really test results but something I recently tried. We have had conversations about those people who close-transfer wort or push beer from one keg to another, etc. I have always open-transferred wort to primary, open-transferred primary beer to secondary and also to a keg. Some of you guys winced a little with that and I assume the issue would be oxidation. I figured that one thing I had the ability to do was purge the keg before I rack to it. So for the last 15-20 kegs I have made, I go to my brew bunker and fill the just-cleaned-and-sanitized keg with CO2 from my 20# tank. Bleed it, fill it again, etc. Then I open it and do the open transfer with racking cane & tubing into the [foggy] keg. I wondered if I would notice an improvement from doing this. Nope. I didn't think I was having any oxidation issues anyway but I detect NO DIFFERENCE and I didn't really expect to. Thoughts?

Maybe your beers don't stick around long enough for it to matter? Who knows? I'm not too surprised by anything at this point. Sounds like a good suggestion for an experiment for Marshall/Brulosopher.

[SchwanzBrewer]

I think my acetaldehyde problem was related to oxidation. I don't know if it was during transfer or what, but it was extremely frustrating. I haven't had an issue with it on the big system yet at all.

[Big Nake]

I will say that I have gotten good at transferring and I can get the tubing down into the secondary or keg and then tip the vessel so that the tip of the tubing is submerged. Once the vessel is closed off (secondary or keg), CO2 should fill the headspace and clear out any O2. In the case of a secondary, it would escape through the airlock and you can bleed a keg with some CO2 connected to purge it. Contact with O2 would be minimal, I would think.

[djinkc]

I have one black QD on the kegerator CO2 manifold.  I use it to purge kegs through the diptube right before filling.  Pretty easy, you can hear the pitch change when it's mostly CO2 in the keg.  Then I fill from the bottom with tubing from the fermenter.  Easy to do, so I figured why not.

[positiveContact]

i half fill my kegs with sanitizer and then push it out with CO2.  I then transfer into the closed keg through the dip tube.  it's open on the fermentor side so not a real closed transfer.

[HVB]

i half fill my kegs with sanitizer and then push it out with CO2. I then transfer into the closed keg through the dip tube. it's open on the fermentor side so not a real closed transfer.

Same for me but I am closed on the fermentor side, co2 push.

[denny]

Okay, maybe not really test results but something I recently tried. We have had conversations about those people who close-transfer wort or push beer from one keg to another, etc. I have always open-transferred wort to primary, open-transferred primary beer to secondary and also to a keg. Some of you guys winced a little with that and I assume the issue would be oxidation. I figured that one thing I had the ability to do was purge the keg before I rack to it. So for the last 15-20 kegs I have made, I go to my brew bunker and fill the just-cleaned-and-sanitized keg with CO2 from my 20# tank. Bleed it, fill it again, etc. Then I open it and do the open transfer with racking cane & tubing into the [foggy] keg. I wondered if I would notice an improvement from doing this. Nope. I didn't think I was having any oxidation issues anyway but I detect NO DIFFERENCE and I didn't really expect to. Thoughts?

 

Exactly the same results I got when I tried it.

[neddles]

Same for me but I am closed on the fermentor side, co2 push.

+1

[TAPPER]

I can't claim to have done any testing, but I do all closed transfers and believe I have seen a difference in beers that sit for a long time (90 - 180 days).