Thanks Bert and everyone

Yes, I realize this is a prepping forum, but every person here is living a full life, including work, family ..etc. So, I won't rule out the possibility of someone knowing a bit about this stuff. And I am not asking for very detailed knowledge. Only basic stuff.

I appreciate the books you suggested.
I'll have a look at them.

BTW, I do tell my kids we should have 'our own supermarket' within our home. A very well-stocked pantry. This is my first priority.