I currently mash on a gas hob, turning the hob off when I reach my strike temperature, then insulating my pot the best I can with towels etc.. This is easy to mess up and sometimes I miss my target or lose far too much heat.
Ideally there would exist a (preferably affordable) device to regulate the temperature of my pot automatically.
Induction hot plates were recommended, and I see that some allow you to set the temperature explicitly. However, most seem to allow you only to set the temperature in 10° or 20° increments.
Does a hot plate exist which will hold a pot at a desired temperature to the nearest degree? Or else, what other appliances would achieve this?