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seen Jan 17 at 1:56

Nov
23
comment Shaking vs not shaking
"that's because you're knocking a significant volume of CO2 out of solution" - No. It is because CO2 is always a byproduct of yeast metabolism, whether aerobic or anaerobic, and the nutrient pack is catalyzing their metabolism - wyeastlab.com/hb_productdetail.cfm?ProductID=16.
Nov
23
comment Shaking vs not shaking
I disagree. howtobrew.com/section1/chapter6-9-2.html Explains why you shake at the beginning. howtobrew.com/section1/chapter6-9-3.html Explains why you do not shake after primary. I would consider Palmer's "How To Brew" as a good best practices source. If you have a credible source with contradictory information, please reference it.
Nov
23
comment Is there anything I need to keep in mind if I double a recipe?
Yup, IBU = (Weight * Utilization * AA * 7489)/(Final Volume * Gravity Correction) Since the only two things here that change are the Final Volume in the denominator, which doubles, and the weight, you must double the weight to produce the same IBU. For aroma/flavor there aren't really qualitative methods without chromatography, so you may as well just also double all hops, then iterate a given recipe to taste. EDIT: the constant of 7489 is for English units.
Nov
23
answered Shaking vs not shaking
Nov
23
comment Sanitation & Dry Hopping
@Dean, Alpha acids (humulone, cohumulone, and adhumulone) are responsible for the bitterness hops impart to beer in a process called isomerization that occurs when you boil them. The the oils that impart aroma and flavor (which are indeed either evaporated or degraded when boiled) are composed of compounds to include Myrcene, Humulene, Caryophyllene, farnesene, and other hydrocarbons. So essentially, when you boil hops you create the bittering compounds, but lose the flavor/aroma compounds. (Source: Daniels, Ray, "Designing Great Beers," 1996, 2000)
Nov
22
comment Alternatives to a hydrometer?
-1: A good rule of thumb - if you are starting your post with "this doesn't answer your question", then it is not a candidate answer and you should not post it.
Nov
22
awarded  Critic
Nov
22
awarded  Scholar
Nov
22
accepted Hop Utilization Resource
Nov
15
awarded  Beta
Nov
10
awarded  Commentator
Nov
10
comment Optimal counterflow wort chiller
Good call on the poly tube and barb fitting.
Nov
9
comment What is the difference between Clean, Sanitized and Sterilized?
Hah, +1 nice. Although ironically, a. urine is sterile and b. ammonia in urine + chlorine in bleach -> mustard gas :-D
Nov
9
awarded  Autobiographer
Nov
9
comment Book for beginners
@Joe I completely agree that there is no problem with an answer that only lists one book. However, I am unsure whether it is appropriate as a requirement. I would think that a great answer would aggregate the rationale from multiple one book answers to guide the reader to the book that is best for them. We should probably move this discourse to meta.homebrew.stackexchange.com, but I don't quite know how to ask it as a question :-)
Nov
9
awarded  Supporter
Nov
9
awarded  Editor
Nov
9
awarded  Student
Nov
9
awarded  Teacher
Nov
9
revised Optimal counterflow wort chiller
Added a question about flow rates inside the chiller.