Hi folks,
I'm sorry that I have to ask this question, as it is probably somewhere within this 143 pages thread, but I still don't really get your FWH calculations. The amount of late hops, that you move up to FWH are being recalculated to give the same IBUs as they would in the original recipe, but with a 30 minute boil. (-> 0.5oz at 10min in 1.067 EST OG becomes ~0.25oz FHW) I get that... but how could FWH possibly only account for IBUs equally to a 30min boil, when essentially these hops are being fully boiled (90min in my case).
I know, I know the perceived bitterness is less with FWH than with regular boiling hops... but by 3 times (90min boil)??? That seems way too much to me.
I have an IPA recipe (Arrogant Bastard clone) that's supposed to get 0.5oz of Chinook at 15 and 10 and 1oz FWH anyway (6G Batch size). So after adjusting for NC I would end up with around 1.55oz as FWH plus a 60 min addition (90min in recipe) of 1oz during boil. That makes for 2.55oz Chinook that are almost all being fully boiled... thats quite a hoppy beer.
Do you calculate all your FWH addition like this, as 30min boil? Even the ones the recipe calls for? Beersmith with standard settings calculates FWH IBUs as full boil time +10%. That is pretty far away from the 30m calculation...
I know all of this involves a lot of controversy and guessing and is always only true for one guy and a single brewery, but your suggestions and the beersmith standard calculations are that far apart, that I'm totally confused...
thanks!