Long story short, I didn't calibrate a new thermometer in the appropriate range.
So, my last ale was mashed at approx 7 degrees lower than the target. My OG was 1.047 and FG is 1.007. Yep, that is around 85% attenuation with us-05. What would be a remedy to get this back up a little? Lactose or something like that? Or should I just drink a watery pale ale this summer?