Where is Pb (lead) found in an immersion heater?
I took apart one of those coil things (mumble) years ago. It was something like 50 cents at the time (lol).
The entire construction was a thin aluminum tube with a fiberglass sleeve inside and some straight (not even coiled) Nichrome wire inside the fiberglass sleeve, terminated by (crimps, I think) to the wire from the cigarette lighter plug.
I would expect lead could be found in the solder to the plug and maybe tinning of the wires. Modern ones may have a fuse, switch and/or LED which might also have used lead. I would certainly not expect any lead to be in contact with the food.
Lead is not prohibited in electronics in many countries, and the use of lead typically is not only less expensive but superior in most ways, it's still available as an option, especially outside Europe.
Some of this stuff is pretty silly. I got a single brick shipped to me last week which not only has a California Prop 65 warning sticker on the box but recommends that the brick should be &quot;stored locked up&quot;. Okay, it's got silica so if you cut it you should wear a respirator and clean up but they don't even have that &quot;store locked up&quot; warning on .45 caliber ammo, THC oil or tobacco.