So this got debunked when ghost of Ezra posted it on his Telegram if you try to burn the snow when it hasn't been compacted it melts just fine when you squish it up into an ice ball you see the impurities from the butane go onto it they're literally just going from gas to a solid because this this ice is so cold so thus you see the black impurities solidify onto it believe me this is all silliness. I know cuz I tried this in Wisconsin over a decade ago