Today I just brewed for the first time since moving to DC from CO...it was not a happy brew day
My efficency went from about 75% down to 55%!!!
My strike temp made my mash about 6 degrees warmer than usual (160 instead of 154). It took me about 15 min to recover.
Did that kill my eff?
I did everything else the same. Except I didn't use iodine to test for conversion...I just waited my usual hour.