AFAIK, all the Edea boots contain synthetic resins, even the ones with leather uppers.
Some composite kayaks and canoes, which do also, continue to outgas for a while after they are made.
That said, not everybody's sweat smells exactly the same. For example, we sometimes tend not to smell as much to ourselves as to others. I assume it has something to do with the exact mix of bacteria that live on and in you. So you might consider washing your hands after sharpening someone else's boots, to avoid catching evil smelling bacteria, as well as to wash off outgassed resins.
Regardless of the cause, you could wear gloves while sharpening someone else's boots, to avoid outgassing resins and bacteria, but my understanding is that wearing gloves - even thin disposables - usually isn't considered safe practice around fast moving power machinery - something you probably know about better than me. I wonder if there is something you could safely coat your skin with to do the same thing.
If outgassed resins get into your clothing, I'm not sure what would work.