Purify by boiling

Purify the water within canteen by boiling it, though wood canteens might not be suitable for this operation. And, as original tablets, only polluted water, no salt water... Why, pal? So that's why both are not available during my first test... Yeah, and, you'll need level1 cooking along with two wood logs for fuel. There's a campfire burning already, but that's balance. Anyway, glad that it works, even my first attempt. Hope there's no potential issue.