Originally Posted by jaginger
That's fantastic. But temps are just temps, right? You're going to get full conversion anywhere between 148 and 158 as long as you mash long enough. So i'm not sure that hitting temps exactly contributed to high efficiency. But it probably made an awesome beer.
yes, you're right about the 148-158 range.
I've read numerous posts here lately where folks are shooting for 148, and their thermometer reads 10 deg high, so their efficiency plummets because they mashed at 138 (or visa-versa they mashed way too hot with a low reading thermometer). Either way, I just wanted to call attention that an accurate thermometer's necessary, along with stirring every once in a while to make sure things are evened out in there.
As for the "awesome beer".... It's still in the primary (2.5 weeks now) and just got down to 1.024. Still a little high, but that's close to the attenuation of the yeast (US-05), especially since I mashed on the high side (154). Probably keg it this weekend and call it done.