When hiking (like the JMT) I eat a Lot of energy bars - around 1700 calories per day
Powerbar's Harvest line is routinely about a $1/bar, but ProBar is usually $2.70 at best. I'll continue to buy the Harvest bars, but I'd like to make my own ProBar analog. Sarah has provided lots of info and recipes to get this done. Harvest bars and ProBars don't have typical preservatives, yet are good for about a year. My question is how to make and package them so they are "self stable" for at least 6 months, at home and in a hot backpack.
Freezing doesn't work for me because there is often a month or more of transit between making and consuming.
Can anyone provide insight/resources on the manufacturing and packaging industry processes that are used to produce preservative-free "shelf stable" bars? I'm looking for books, articles, businesses, etc. that address this issue. Got a friend of a friend who is in the industry? Or know of a production manager who might be willing to discuss the process? Know of a facility that does this kind of stuff?