I've started a couple threads on scuttles, but I think everyone would be much better off if I proposed something of a quantifiable, scientific request in lieu.
Thus, to prove once and for all which scuttles hold their temperature the best, please attempt the following if you are a scuttle owner(and post the results below!):
1. Get hot water
2. Measure the temperature of this water.
3. Pour said water into your scuttle.
4. Measure the temperature at a series of evenly spaced intervals of your choice
(Every 2 minutes is probably more than generous enough, but feel free to be more or less robust at your choosing)
5. Post your results here! I will be collaborating all the results together to produce an accurate comparison of the degradation of heat in different types of scuttles.
*For an added bonus, you may want to try to build a lather in your scuttle, and take a temperature reading of the lather itself; however, this will be more auxiliary, as the accuracy will not likely be as sharp.
Credit to JPM for originally measuring his scuttle temperatures and posting them.
This takes more than a few mouse-clicks, I know. But for Science!
(feel free to include photos of your scuttle, and don't be afraid to submit home-made contraption results!)
Edit: Boiling water is I guess not the best idea.