To really block odors you need foil lined bags (which jerky bags probably are).
Probably why commercially made “good-for-20-years” freeze dried meals are packaged that way. But I doubt the odor retention re-seal-ability of the single zip on those bags.
I use rinsed out freeze dried meal bags for sealing up garbage before it goes in a second trash bag.
Actually, I use these freeze dry pouches thrice; most of freeze dried meals are more of that stuff than I want to eat in one sitting, so I augment the meal, putting half the freeze dry contents into a Zip-lock for the next dinner and rinse out the pouch for reuse the following day. And then rinse out the residual food odors again and use that pouch for double bagged trash.
That being said I'm happy with freezer weight zip-lock baggies inside a blue barrel. Being a vegetarian is a benefit in this regard since I'm not carrying foods with a lot of odor....like jerky.
Same here, lots of stuff in Heavy Duty or double sealed Zip-locks, segregated inside stuff bags in the blue barrel. Being an omnivore that includes some odor attractive foodstuffs, especially early on in a trip when I still have hard cheese, cured meats, chocolate, hard bread.
I can attest to one use in which regular Zip-locks work very well long term. On desert and coastal trips, and long roadtrips, I bring wet wipes. The plastic dispenser container they come in isn’t well sealed, plus it is way too big and half full of air.
I decant the wet wipes, or half of them, putting them at the bottom of a Zip-lock and rolling it over like a wet wipe stogie. And then I put that stogie Zip-lock in another rolled over Zip-lock.
I usually bring some excess home, and then tend to decant a supply of new wet wipes in fresh baggies before subsequent trips. I have a collection of bagged wet wipes, some at least a couple years old, including one that lives with some toiletries in the tripping truck. All of them are still moist.