The factor of alpha acids extracted from hops during boiling compared to the theoretical maximum. Typical utilization is 0.2-0.3. All things being equal, a lower gravity wort and longer boil times contribute to greater utilization.

learn more… | top users | synonyms

1
vote
1answer
49 views

Modifying Recipes for Boil Volume

I am modifying an extract recipe for a full volume boil. I understand how to use a brew calculator to calculate modified hop additions, but since my LHBS store sells hops in 1 oz bags, I'd rather not ...
0
votes
2answers
70 views

Calculating hop replacement weights for different boil times

A question about utilisation calculations and hop replacements... Here's the scenario... I've got a basic grain bill and I want to vary the hops each time I create the beer. Obviously, different hops ...
1
vote
1answer
179 views

Will steeping specialty grains keep late extract addition from affecting hop utilization? To what degree?

I know my question is sort of answered in this post, where @Dean-Brundage answers that adding extract late will incease hop utilizaiton, and in this post, where @mdma answers that John Palmer and ...
3
votes
1answer
138 views

Is bitterness extraction dependent on wort volume?

Supposing I boil the same amount of hops in the same wort (same SG, for the same time, let's say one hour), separately into two pans: One with 10L wort, and x grams of hops One with 1L wort and x ...
6
votes
1answer
676 views

Does wort gravity affect hop utilization?

My understanding is that wort gravity does not affect hop utilization. Instead, a larger boil volume will increase hop utilization, while a higher amount of break material will lower hop utilization. ...
2
votes
1answer
457 views

Converting Hops in All-Grain to Extract Recipe

I have this All-Grain recipe that I'm converting to Extract. Do you basically just increase the hops until the IBUs match the original measurement? I've gotten the OG fairly close and the SRM is a ...
4
votes
3answers
316 views

All-late addition hop APA

Has anyone tried this or anything like it from HBC? http://www.homebrewchef.com/AmarilloPale.html The claim is that since the AA's are so high, adding late will balance the beer and impart an ...
2
votes
1answer
226 views

Splitting Batches / Dilution

My current setup is an 8-gallon aluminum kettle with a weldless valve and Blichmann Brewmometer (which, even when 'shielded' from flame, does not work, not happy with that investment). This serves as ...
3
votes
3answers
412 views

Indoor-alternatives to kitchen stove

I am a kitchen-brewer doing 5 gls all-grain batches and am frustrated because the kitchen stove is lacking the last bit of power to yield a nice rolling boil. Are there any indoor-alternatives to the ...
4
votes
2answers
865 views

Brewing at Altitude

How does high altitude affect brewing chemistry? Up here in Denver (5280') or even higher in the mountains (some towns in Colorado are 9000' and higher), water does different things. In Denver, water ...
3
votes
4answers
177 views

Hop utilization

I've been thinking, especially after brewing my last IPA, about getting the most out of my hops. The higher the SG of your wort, the less you get from your hops, so the more you have to put in. I've ...
3
votes
1answer
273 views

Hop schedule for Single hop ale brewing

I am planning on brewing up a handful of quasi-pale ales using only a single hop varietal per batch. The goal is to get a feel for the bittering, flavor and aroma of some varieties I want to ...
7
votes
2answers
397 views

Extract late with a full boil?

If you can do a full wort boil with extracts is it still beneficial to be adding extract late to avoid color changes and the like? What would happen to hop utilization with extract late in a full ...