« on: October 27, 2015, 08:51:42 AM »
I dont think its a flip-switch situation. 170F boink, no AA... 171F boink, lots of AA. When I say that I chill to 170 I actually chill to 180 then shut the water off and it slids down to 175-170 before stabilized. I drop in the hops and set timer. If the temp hits 160 I hit the flame. With this method I get super flavor and aroma with no extra bitterness that I can notice. Would a lab prove me wrong? Dunno, I doubt itI'm sure you'll get some additional measured IBU's, but the question is whether it is detectable by your palate rather than just at the lab. Maybe if you use a metric crap-ton of hops in a low IBU beer you might get enough to notice, but most real-world scenarios are likely to fall below the typical detection limit.