These are my glue pots, aside from a little one I carved out of soapstone for more primitive activities. I haven't actually used the electric one, I bought that cheaply from a print shop auction thinking I was going down the rabbit hole of casting composition rollers for a letterpress press. It still has remnant composition in it which is primarily hide glue. I went with getting some new rubber ink rollers made by an experienced person for now, realizing I didn't have enough experience with letterpress to know what a good performing roller would be like and my setup is in a place that may experience high heat and humidity which necessitates adjustments to the recipe that are not entirely spelled out in sources I've looked at. I haven't had a need arise yet that would call for that kind of volume or more frequent use of hide glue, the little cast iron double boiler type tends to be enough for small projects. I do want to try making glue in the electric pot at some point, by which I mean cooking the rawhide (or whatever) at the stabilized temperature this thing should operate at.