QUOTE: just don't sweat over an hour of touching the handle, which barely heats
If the handle is warmer by any degree than his natural hand temp then his hand will warm up. If he's wearing any type of glove with insulation in it, the insulation will warm up. Insulation, by its nature is resistant to heat transfer but not impervious to it. That means the glove will warm slowly but it will warm. And when it does get warm the heat inside the glove will not transfer out very quickly at all. Most likely the temp will continue to rise until his hands sweat if he stays in contact with the knife long enough. The bottom line is that for extended contact with a warm surface he would probably stay more comfortable if the gloves were not insulated but there's only one way to be certain, gotta try it and see ...
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