I brewed a double IPA today shooting for the Pliny numbers posted above (5.45 mash, 5.24 pre-boil, 5.07 knockout). I adjusted my mash pH to 5.44 and my pre-boil pH to 5.25 with 85% phosphoric acid. I checked my pH at 10 minutes left in the boil and was surprised to see that it had dropped to 5.02, even with 8oz of hops.
I hit my SG dead on and had a great, compact cold break. I will post back with how the beer turns out.
I hit my SG dead on and had a great, compact cold break. I will post back with how the beer turns out.