GroovePuppy
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Dogfish Head 90
16.5# Pilsner malt
1.66# Amber malt
16 AAU Amarillo (continuous 90-0 Minutes)
8 AAU Simcoe (continuous 90-0 Minutes)
8 AAU Warrior (continuous 90-0 Minutes)
1 oz Amarillo (Dry Hop)
.5 oz Simcoe (Dry Hop)
.5 oz Warrior (Dry Hop
Wyeast 1099 (Whitbread)
OG 1.088
FG 1.021
IBU - 90
SRM-13
Step mash. Mash in at 122 then raise to 149. Mash out at 170. Boil 105 minutes, start adding hops at 90 minutes, about .25 oz every 7.5 minutes.
Source, BYO Clone Recipe
This seems to be the de facto clone on the interweb but I am confused. When I plug the numbers into Beersmith it gives me an OG of 1.100. Does the recipe assume a 65% efficiency for some reason?
Edit: It'd be cool if someone could tell me what hop weights they used. Are the AAU numbers based on a 90min utilization or a reducing utilization due to the continuous addition?