Originally Posted by chrisn812
I wanted to chime in,
This is my first AG batch. I brewed this on Saturday night finally getting the batch into the fermentor at 1:30AM EDT Sunday morning. I pitched in some washed Nottingham yeast from a previous batch of Brewers Best Red Ale i had racked earlier that day into secondary. By the time i woke up ~8am and checked, the fermentor was bubbling nicely with a wonderful aroma.
A few questions: When I sparged with ~170dF water my temp probe said 205dF in my Igloo 5gal TUN. Is that right? I think I need a new temperature sensor. Also, my OG was 1.0645 corrected to 59 dF when I pitched making my effeciency 83%. Is that possible? If so, maybe next time I'll only use 8# 2-row.
I'm excited to drink this one...
Re: 205dF in your mash tun.. I question your thermometer.. Can you or have you calibrated it recently? Calibration is easy with some boiling water.. it should read 212 dF at boil (unless you live in Denver) If yours can't be calibrated I'd think about replacing it with one that can be. With regards to your efficiency..
Sounds like you might have accidently pulled off a mashout with that high grain bed temp reading. A mashout will definitely raise your efficiency. A mashout is where you raise your mash temp at the end of the mash to around 160-165 dF. In your situation, rather than adding more hot water to raise your temp, try drawing off some of the mash liquid and heating to a boil then return it to the mash, before you set your grain bed with a recirculation step. This will take a little experimenting to get it dialed in, but its worth the effort. This will help to liquefy the sugars you just converted and aid in you sparge, thus raising your sparge efficiency. You are right with your comment of using less grain to get the same OG results. You didnt say what your target OG was so Im assuming it was lower than the 1:065 you ended up with. However, as I always say
Good beer begins at 1:060!
Good luck with your batch. Keep the faith.