Someone please correct me if I am wrong, when the wax is melted and then spread it changes the chemical composition of the wax and it is not reusable from what I understand. Otherwise I have been wasting money every couple rides.
Nah, you can reuse it. I have been reusing for over 20 years with no issues. Though I scrape over a very clean area. If the scrapings get dirty I wouldn't reuse it. Just clean shavings only.