General Category > Ingredients
Flavor/Aroma hops - adjust for AA% or no?
erockrph:
Up to this point when I've been combining flavor/aroma hops in a recipe I've generally been working with hops in a similar AA% range (i.e., all high-alpha US hops for example). If you're working with two hops with a drastically different alpha acid percentage and you're looking strictly for a similar flavor/aroma contribution from each, do you need to adjust for AA% or would you simply use the same amount by weight?
For example, if I wanted to get an equal flavor/aroma contribution from Columbus at 16% AA and something like Fuggles at 4%, would I want to use 4 times more Fuggles than Columbus in my late/whirlpool/dry hops? Or is the flavor contribution pretty much the same on a per-weight basis?
Obviously, some tasting and recipe-tweaking will likely be involved, but I'm wondering if anyone has any experience with a rule-of-thumb that will get you in the right ballpark to start.
denny:
I don't adjust for AA since you get little to no IBU from them.
nateo:
I think it would depend on how quickly you can chill, and whether or not you're doing an extended hop stand post-boil. If you're chilling within 10min it probably won't matter, but if it takes 20-30min to chill it, that could make a difference.
hopfenundmalz:
The IBUs from late additions can be high if you put a ton in. You get aroma from dry hopping, not much bitterness.
For flavor and especially aroma, you might look at the essential oil content for the hops. In your 2 hops listed, Fuggles =0.44 - 0.83% and Columbus =1.5 -2.0%. Citra is alway called intense, well it is at 2.2 - 2.8%, which is pretty high.
I can't tell you what to do, as it is recipe, equipment and process dependent. You can try different amounts for different beers and find out what you like.
http://www.freshops.com/hops/usda-named-hop-variety-descriptions#usda_id_19209
http://www.usahops.org/index.cfm?fuseaction=hop_info&pageID=8
krazykrausen:
AA% doesn't factor in for flavor or aroma. Similar weight is a good way to start, and you'll have to adjust from there
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