I'm thinking of using a metal paint stirrer on a corded drill to aid with dough-in in the mash tun. I don't think it needs to be used during the mash. It would be nice to have a mechanical advantage instead of manually stirring so much. It may also minimize heat loss because the job can be done faster.
Has anyone done this and had any experience with it?
I've been using mine and it makes it easy. Doing 18 gallon batches, but I'm concerned about the O2 it brings into the mash. I've been hearing how important it is to keep it out of every step in brewing. I saw a clip from Avery and Sierrra that said it was impotant to keep it out of the mash. Can't say I can tell any difference.