Of course, you can buy a countertop device to heat the water to temperature for $350 (called a "water oven") (damn!), but there are other ways. They make an electronic thermometer you can put in a crock pot that will keep the temperature within 1/2 degree F for a heckuvalot less than $350. You plug it in the wall, then you plug the crock-pot into it. Right now, I'm using my glass-top stove and a candy thermometer to hold the temp. A crock-pot set to low is too hot, unless you like very well-done.
On the protein culinary scale, I’m tone deaf. Where’d you learn about that method?
I’m sorry, Cyber, but as tempting as that method sounds, there is far too much work involved for me to attempt it. Even if I had the equipment, my attention span on some days would preclude me even thinking seriously about it.
Enjoy some for me!