Another way to remove oxygen from stored food to prevent rancidity is to make your own oxygen absorbers (rancidity is caused by oxygen oxidizing fats and other flavor compounds)
Which are literally just iron filings mixed with table salt in a gas permeable packet (coffee filter paper works great)
The salt is hygroscopic (absorbs water) and water + oxygen + iron turns into rust, which sequesters the oxygen
I make my own and put them in opened packages of nuts and seeds :]
balance is so broken. nearly unplayable without the inheritance cheat code