Let’s say I got about 64% attenuation on a 1.058 beer that finished at 1.020. This was a single infusion mash at 158F for 45 minutes. With the goal of hitting a FG a few points lower should I decrease the mash temp, increase the mash time, or both? My plan right now is to mash at 156F for 60 minutes. I realize it’s a pretty unpredictable ask. Any input would be appreciated.