I have made this recipe a few times now because it is easy. I make a ten gallon batch, but I scaled it to 5 for the recipe. Great hop bitterness and some awesome hop aromatics. Clean crisp taste. The numbers are approximate because it all comes down to efficiency and AA. My last batch used some low AA hops and so I had to adjust for that. Enjoy!
Easy Peasy Imperial IPA
15 lbs Pale Two Row (British or American depending of taste)
.75lbs Crystal 40L
1lb Flaked Barley
.5oz Centennial FWH
1oz each Centennial and Cascade (60min)
1oz each Centennial and Cascade (20min)
1oz each Centennial and Cascade (5min)
1.5oz Centennial Dry Hopped at day 10 for 10 days
1 oz Cascade Dry Hopped at day 10 for 10 days
EDIT* This is my base hopping amount, I am known to add up to 12oz if it pleases me and I have the hops on hand
Whirlfloc in the kettle, 1 tablet
US-05 x 1 packet
Being an Imperial I like to mash around 149-151* or so to dry this guy out quite a bit. If it falls a little then no worries because the yeast is going to have a dog of a time anyways to eat as much yeast as possible. I find that the US-05 can attenuate to 85% often, so that keeps me sane.
Mash at 149-151* for 75minutes, sparge, boil 75-90minutes (depending on setup). Ferment around 65* for ten days and then rack to secondary along with dry hops. Keg or bottle after an additional 10 days and crash cooling if possible.