Used old fashioned oats for the first time this weekend. I cooked the oats for a few minutes, dropped the temp and added a pound and a half of base. I let it sit at 128 for 15min. Brought it up to mash temp at 155, and added it to my mash. I underlet, so the during the 15 minutes the mash was hydrating. Stirred it all well and off to the races.