7 replies to this topic

[HOPAZ]

Just got some hops in the post and was in the process of makin a Bell's 2 Hearted Clone. All Centennial. But the recipe is using an AA of 11% and mine are 6%. Can I just up the amount to get to the prescribed IBU of 50something or is there a detrimental problem with that? Just curious if the aroma was on some sort of AA ratio or not. I am a bit leery of creating something that is bitter enough but has twice the aroma character of what I'm trying to accomplish. This science stuff just baffles me.Thanks,J

[ThroatwobblerMangrove]

Just got some hops in the post and was in the process of makin a Bell's 2 Hearted Clone. All Centennial. But the recipe is using an AA of 11% and mine are 6%. Can I just up the amount to get to the prescribed IBU of 50something or is there a detrimental problem with that? Just curious if the aroma was on some sort of AA ratio or not. I am a bit leery of creating something that is bitter enough but has twice the aroma character of what I'm trying to accomplish. This science stuff just baffles me.Thanks,J

I'd probably just increase the 60 min addition stuff to get the IBUs where you want them and leave the flavor/aroma additions the same.

[BrewerGeorge]

I'd probably just increase the 60 min addition stuff to get the IBUs where you want them and leave the flavor/aroma additions the same.

I agree.(You have Centennial at 6 IBU's? That's some of the lowest I've ever seen - in Cascade range. Where'd you get it?)

[MtnBrewer]

+1 to the above. I also agree that 6% for Centennial is crazy low. Very odd.If you want to try to maintain the same level of bitterness, a good first order approximation is to adjust the bittering hops to maintain the same AAU level (AAU means alpha acid units and it's the same as HBU, home brew bittering units but NOT the same as AA or IBUs). Here's how you do it.If the recipe called for 2 oz. of 11% Centennial, that's 11 x 2 = 22 AAUs. So if you have 6% Centennials, you need 22 / 6 = 3 2/3 oz. to produce roughly the same amount of bitterness. Keep all the aroma hops the same.

[lowendfrequency]

When I started brewing (about 7 years ago) centennials were running around 12%, now mine are down to 8.9%. Seems pretty standard across the board too

[ThroatwobblerMangrove]

When I started brewing (about 7 years ago) centennials were running around 12%, now mine are down to 8.9%. Seems pretty standard across the board too

wow - that's a pretty significant drop.

[HOPAZ]

(You have Centennial at 6 IBU's? That's some of the lowest I've ever seen - in Cascade range. Where'd you get it?)[/quote]I got them at Nikobrew. Whilst looking around a little more I've run across some that were as low as 5%.

[jayb151]

[quote name='HOPAZ' date='05 June 2010 - 02:24 PM' timestamp='1275765847' post='410486'](You have Centennial at 6 IBU's? That's some of the lowest I've ever seen - in Cascade range. Where'd you get it?)[/quote]I got them at Nikobrew. Whilst looking around a little more I've run across some that were as low as 5%.[/quote]Wow! I've never seen that. The lowest I've seen was about 7.5. I would question whether you got Cascades in place of Cents. It just doesn't seem right...