I was watching a brew TV video about all grain brewing. In the video the guy mashed for the standard hour and then he added near boiling water to the mash to raise the temp to 170 and then stirred the grain up and closed the lid and let it set for 10 minutes then he did the vorlof and fly sparged as usual. Is this method unusual.
https://youtu.be/AcRXjdlcvKY
https://youtu.be/AcRXjdlcvKY