Torches are able to be crafted in inventory without having coal in your inventory.

When I open my crafting in my inventory (not in crafting table), I am able to craft torches without the use of coal or charcoal (the crafting recipe shows coal is being used, even though I have none in my inventory). I tried crafting a few, and they work normally as a legitamate torch would have. I tried rebooting my device and the app, the only thing that changed was the number of torches I could make, because I had crafted a few.