3 hours ago, gfweb said:
Mag stirrers lack the temp control of a SV. You could wire in a PID controller like some of us did in the early days of sous vide.
But why not just get a immersion circulator?
Many years ago (while most of us were getting our circulators as used Polyscience on Ebay) I made a circulator like this - magnetic stirrer with a heating element controlled by a PID controller and a type T silicone encapsulated thermocouple. You need a rack that sits above the stirrer bar to make sure there's no interference.
As @gfweb says, nowadays, there's no reason to go to such lengths with decent quality inexpensive circulators available.
