How much does AA% factor in when dry hopping?

[kal]

I have 2 types of Cascade. One is 4% AA, the other 8%.

I like the way the 4% AA Cascade tastes when I dry-hop 1.5 oz for 4 days in my IPA. If I want to do the same in a different batch with the 8% Cascade, would I use half as much?

My guess is that no, it's not that simple. I'll likely get a bit more flavour/aroma out of the 8% hops over the 4 day period but not twice as much. Correct?

Kal

 

[Brewsmith]

Alpha acid content does not affect the dry hopping. Use the same amount of either one.

 

[Boerderij_Kabouter]

Correct, without the application of sufficient heat the Alpha Acids do not isomerize and do not lend any bittering to the beer. Flavor and aroma only. Use the same amount.

 

[kal]

Perfect! Thanks for the reply guys.

I guess in the same vein, if I have two hops that are the same variety, I should use save the higher AA % one during the boil for bittering as I'll get more 'bang for the buck'.

Kal

 

[Boerderij_Kabouter]

Right again save the AA's for when they will be used.