Over the years we have had a number of weevil infestations in our pantry. I finally had the county entomologist share with me that they tend to be in most commercially packed grains and that all you can do is to go through what you buy fast enough to keep from having a full weevil life cycle get out and into your pantry. I have heard of your suggestion to freeze flower and have been told that this only delayed the start of the insect life cycle to when you took it out of the freezer. (The implication was that your freezer couldn’t get cold enough to kill them but only make they go dormant.) I am looking for information about generating CO2 to replace the air in your packing containers and this would either kill them or keep them dormant the entire time you ore storing them. I have seen one description of using a coin size piece of dry-ice inside the mylar bags before final sealing. The dry-ice idea would not be available after the event. There has to be a simple lime-stone and acid in a mason jar with a piece of aquarium tubing????? (Looking for details on this!???)
In his 2016 book, Can It! The Perils and Pleasures of Preserving Foods, Gary Allen, a food writer and adjunct professor at SUNY Empire State College, traces the evolution of food preservation as a source of culinary innovation. “The original food-preservation methods—like salting and drying and all that—actually turned the food into something else,” he told me over the phone. “Cabbage sauerkraut is not the same thing as cabbage. Wine is not the same thing as grape juice.”
So, what about specialty prepper food? Is there such a thing? Yes. Even though you can turn your everyday food into prepper food simply by storing it away under the proper conditions, you can also purchase speciality prepper food that has a long shelf-life and will keep you and your family well-fed for a long time. There are basically two types of specialty prepper food – MREs and freeze dried food.
Seven Silicon Valley entrepreneurs have purchased bunkers from Rising S Co. and planted them in New Zealand in the past two years, said Gary Lynch, the manufacturer’s general manager. At the first sign of an apocalypse — nuclear war, a killer germ, a French Revolution-style uprising targeting the 1 percent — the Californians plan to hop on a private jet and hunker down, he said.
For global catastrophic risks the costs of food storage become impractical for most of the population [54] and for some such catastrophes conventional agriculture would not function due to the loss of a large fraction of sunlight (e.g. during nuclear winter or a supervolcano). In such situations, alternative food is necessary, which is converting natural gas and wood fiber to human edible food.[55]
I know it’s not an incredibly expensive product, but a food dehydrator has been on my prepper wishlist for a long time. They’re so convenient, especially when you have ones with so many racks like the Excalibur on hand. Yes, you can dehydrate foods without one, but it’s not as easy to do, and thus for me, makes it much less likely I’ll actually bother to do it. Major wishlist item here.
Personal defense items – such as rifles and heavy firearms – are going to be increasinly hard to manage the farther you move from steady supplies.  Ironically, it’s firearms that help acquire more food, provide personal protection, and deter others from attacking.  In a SHTF scenario, heavy armament is only good within fortified areas.  If you want to stay highly mobile, switch down to a .22LR polymer rifle such as the Savage survival rifle or similar.  Lightweight, collapsible, and perfect for hunting game.  Loaded with subsonic rounds, it can also be a lot more efficient than heading off a target with a loud 30-06.
“If you’re using it for emergency survival, the fact is you’re going to buy it once, and hopefully you’re not going to use it,” Shields said. “But it’s there as a safety net for you and your family.” That’s what intrigued me about freeze-dried food: You can wait up to a quarter-century to use it, but in an ideal world, you wouldn’t have to eat it at all.