Just echoing the wisdom to keep your tinder dry, right up until the time you are going to light it. The kiddos I tried a long experiment with fluffed up Amadou yesterday and it took so long that I couldn't get it go with traditional F&S when we were done. It's usually my go to tinder but I let the moisture get to it. Black English Flint & steel made lots of sparks that landed right in this beautiful bundle but we got no joy. They just died, no matter if I hit rock with steel or steel with rock. I didn't dump tin this time though!