I collected the left over wort that drained from my mash tun. It was a pretty low OG.
Here's what I did:
1. boil jars ,rings ,and lids
2. bring wort to a boil
3. fill hot jars with hot wort
4. screw lids on
5. let sit on counter 24hr Do Not Touch them.
6. keep them in the fridge
I keep them in the fridge because I did not pressure can them. If you want to make them shelf stable them I would run them in a pressure caner.