Hi there! This is my first time posting here. I recently brewed a double IPA (my first in this style), which included a hefty dry hop dose (Simcoe, Centennial, and CTZ - about 7 oz in total).
I knew that oxidation could be an issue, so I went ahead and fermented in a 6 gallon keg (5.5 gallons of wort). It was completely closed to outside air except for the 20 seconds or so it took to add the dry hops (post fermentation) - this was done with the gas running at ~2 psi the whole time to keep as much oxygen out as possible. After the dry hops were in, I purged another several times to clear the headspace and raised the pressure to 10psi. After 2 days, the beer tasted and smelled great! I did a closed transfer to another keg (purged with CO2/starsan), and immediately (the transfer took ~30 minutes), all hop flavor and aroma was gone!
I don’t think oxygenation can take place in less than an hour (can it?). Is there something in the process of a closed transfer that could strip the flavor and aroma away? Both the fermenting keg and the serving keg had FLOTit 2.0 floating dip tubes with mesh filters. The serving keg had been well washed before being purged with starsan & CO2.
I’m truly at a loss here. Has anyone else ever experienced something like this?
I can give more information, but the key issue is that before the closed transfer to a purged keg, it smelled and tasted great. Afterwards (30 minutes later), all aroma was gone. Any help is appreciated!
I knew that oxidation could be an issue, so I went ahead and fermented in a 6 gallon keg (5.5 gallons of wort). It was completely closed to outside air except for the 20 seconds or so it took to add the dry hops (post fermentation) - this was done with the gas running at ~2 psi the whole time to keep as much oxygen out as possible. After the dry hops were in, I purged another several times to clear the headspace and raised the pressure to 10psi. After 2 days, the beer tasted and smelled great! I did a closed transfer to another keg (purged with CO2/starsan), and immediately (the transfer took ~30 minutes), all hop flavor and aroma was gone!
I don’t think oxygenation can take place in less than an hour (can it?). Is there something in the process of a closed transfer that could strip the flavor and aroma away? Both the fermenting keg and the serving keg had FLOTit 2.0 floating dip tubes with mesh filters. The serving keg had been well washed before being purged with starsan & CO2.
I’m truly at a loss here. Has anyone else ever experienced something like this?
I can give more information, but the key issue is that before the closed transfer to a purged keg, it smelled and tasted great. Afterwards (30 minutes later), all aroma was gone. Any help is appreciated!