i tried my hand at all grain for first time today. i had my grain all mixed around and happy in my cooler the temp was 154.6f, being my all grain my goal was 152-155. i popped lid on cooler and set timer for an hr. after an hr first thing i did was check mash temp and it was at 148.8f. should i get it back up to 152-155 and let mash sit for 30 more mins? or should it be alright? thanks in advance