So I was planning an early morning brew day tomorrow, well some things came up and it might get pushed back. So I am aware of ppl doing overnight mashes to save brewday time. My typical brewday start to finish including cleanup is 6hours. 6 hours of pure joy. But any how, my thought is to mash in before I leave for work so when I get home I can finish the brew day before the kids go to bed. Or atleast before I fall asleep. So have never done anything more then a 90 minute mash, I'll be at work for 9 hours or more, I use a spike 3v2p eherms and brew 15 gallon batches. Any words of advice will be appreciated. Like should I set my mash temp and recirculate the entire time? My utility company will appreciate it haha..