Thursday, May 1, 2008

Keg Aeration & Hops

What a great combination...air & hops!

I ran into a predicament while transferring kegged beer to another keg. I had empty a 5 gallon corny, and proceeded to siphon the remaining 2 gallons into a 3 gallon corny. After trying many times without success (I think it was because of all the CO2 in solution), I ended up pouring it as gently as possible. That went as well as could be expected, but I'm sure oxygen got mixed in pretty good. Before sealing it shut, ¼ ounce of whole Yakima Golding hops were tossed in. I really like these hops for late additions and dry hopping. After bleeding out the oxygen in the large head space, I cranked it with 30 lbs of pressure.

Six hours later, I brought it to an ensemble rehearsal, and everyone really liked it. It already had a light/young & fresh/green hop aroma and taste. A couple days later, the taste is really remarkable. Much smoother and balanced. It is a wonderful cask conditioned ale.

There is quite a bit of foam coming through the line, and I assume that is because of the CO2 release emitted from the large surface area on the hops. Also, with what oxygen has been introduced (pouring & hops), the feel of carbonation is so much smoother with much finer bubbles. Since it also has lower carbonation it really feels like it has Nitrogen. I think the combination of air and hops put this beer in a much better place. It is sitting at cellar temperature and is becoming a great tasting cask conditioned ale.

What a wonderful surprise. Since this is my first experience keg hopping, and after it has already been carbonated, I look forward to seeing any differences adding them at various times. The beer transfered and keg hopped here was the Round 2: ESB Amber Ale.

Updated 5/9/08 - The foaming in this beer is way over the top, and it wont settle down at all. I'll try taking off all the headspace pressure, to help release the gas, and let it go nearly flat, and then put more CO2 in. The taste has gotten a little harsh. Perhaps as the volume has gone down to about 1 gallon, the hops become overbearing.