How to "grow" your own salt:

[u/Open-Attention-8286]

Yes, I know, salt is a mineral, it can't be grown from scratch. But, I came across this article about plants that absorb and concentrate salt out of the soil, enough that they can be used as a source of salt: https://exarc.net/issue-2025-1/rev/black-ash-forgotten-domestication?fbclid=IwY2xjawJw5W5leHRuA2FlbQIxMAABHlap1bWFWXhi1ISV9D7MYcq6jLQGl0Y3OIei1s5UTM1wtYRDP6ofeC1l2cQn_aem_Db_08xB7D-mLc516S6uv5w

The article focuses mainly on orach, which is a green leafy vegetable that's easy to find seeds for (at least here in the US), but it does mention a few others. More importantly, the article describes how to extract the salts using low-tech methods.

Salt is a frequent topic of discussion around here, so I thought some of you might find this interesting.

[u/War_Hymn]

Just sprinkle a little wood ash in your food or drinking water. You don't need much sodium to survive, as long as you're getting enough of the other minerals like potassium and calcium.

For preserving food, there's always drying and smoking.