Aluminum-free baking powder and organic corn starch, or other starches like tapioca or arrowroot.

Glad to see yeast in there, was worried after I saw the tons of flour listed...

Pick up some stuff for trading like coffee and lighters, don't forget first aid, especially antidiarrheal and antibiotics. Maybe Gatorade mix or other replenisher just in case.

EDIT: forgot! Baking soda, vinegar- which are good for a stupid amount of things.

Aluminum-free baking powder and organic corn starch, or other starches like tapioca or arrowroot.

Glad to see yeast in there, was worried after I saw the tons of flour listed...

Pick up some stuff for trading like coffee and lighters, don't forget first aid, especially antidiarrheal and antibiotics. Maybe Gatorade mix or other replenisher just in case.