>Came out of using the heating power pretty much equal to a light blub , so am gobsmacked some actually "boiled".
>Have read various online warnings about preparing certain foods in slow cookers. Apparently there are/were concerns because temperatures never reach high enough levels to kill certain bacteria.
I've read warnings about older slow cookers potentially not running hot enough. I've even seen a recommendation that people test their old slow cooker. I can't remember the test suggested, but the one I saw basically involved heating water. After a certain length of time, the water should be at least a certain temperature.
Supposedly modern slow cookers run hotter than many vintage designs, and so there is the inevitable suggestion that one should just "upgrade" to something. This upgrade, of course, will also bring some other upgrades, such as environmental impact to make a new slow cooker, increase in the trade deficit since we no longer have the sophisticated technology required to make a Crock Pot, and possibly issues with bad wiring and poisonous glaze (probably more of an issue with the cheapest, no name slow cookers).
I can say from experience with vintage slow cookers that they seemed to have varied in heating power. I've got a couple of old ones from the 70s when the technology was, er, hot, and everyone was making a slow cooker. One definitely seems run hotter and heat faster.