How To Turn Salt Water Into Fresh Water (Simple Improvised Distillation)

For the purpose of this tutorial, the metal trays hold both bottles firmly in place. While you probably won’t have trays ready in a survival situation, you can substitute them with a pile of sand and bury one of the bottles at the very top of the pile with its mouth sticking out. Then, you can build your fire on top of the mound. As for the bottles, sadly, human trash has gone everywhere and plastic bottles usually wash up on beach shores, so they won’t be hard to find.