How to craft container for cooking and filtering/purifying water

If a scenario in which you go in the forest or next to one, how are you supposed to craft a containers?

All the web-ressources I can find for filtering water thanks to the multi-layer rocks (from fine sand to charcoal/rocks) will need a container. Either something metallic, a can, or a simple bottle cut in half. But you don't find that far away from human presence. Well, you might with all the debris left by our specie, but for the sake of the question let's assume you are somewhere you can't find it.

To boil water to purify it, you also need a container. Most of time, it's assumed you have a metallic pot, but blacksmithing isn't a step you'll take before achieving to have clean water.

Same for cooking tutorials : "take your fish, put it in the pot, easy peasy"

So my question is :

1/ How do you craft a container that can be use for filtering water?

2/How do you craft a container that can be heated to boil water and cook?

3/ This one is a bit off topic here, but where can I find some ressources about survival from scratch and not "survival from scratch but only if you already have a a supermarket next door"?

EDIT :

Comments and vote cast are the proof I haven't been clear. I'm not looking for method to purify or filter water. I'm looking for a way to craft the container needed for thoses actions and cooking. And these without going to a supermarket or taking something in my house that I got in a supermarket

posted over 6 years ago

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T.Nel‭

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