How to Make Long Term Survival Food

Table of Contents

1. Introduction
2. Understanding the Enemies of Food Storage
3. The Art of Making Pemmican: The Ultimate Survival Food
4. Hardtack: The Survival Bread That Never Dies
5. Step-by-Step Guide to Dehydrating Food at Home
6. Dry-Pack Canning with Mylar and Oxygen Absorbers
7. Pressure Canning for Long-Term Protein
8. Choosing the Right Gear for Food Preservation
9. Organizing and Rotating Your Survival Pantry
10. Practicing the Skills
11. Conclusion
12. FAQ

Introduction

A heavy winter storm knocks out power for a week, or a backcountry expedition takes a wrong turn, leaving you miles from the nearest resupply. In these moments, the granola bar in your pocket isn't enough. True self-reliance requires a deeper strategy for food security. At BattlBox, our team of outdoor professionals understands that gear is only half the battle; knowing how to prepare your own sustenance for the long haul is a critical skill. If you want a steady stream of field-ready gear, choose your BattlBox subscription. This guide covers the most effective methods for preserving nutrition, from ancient techniques like pemmican to modern dry-pack canning. We will explore the science of food spoilage and provide step-by-step instructions for creating a resilient, long-term food supply. By mastering these skills, you ensure that you and your family remain fueled and capable, no matter the circumstances.

Quick Answer: Making long-term survival food involves removing moisture, oxygen, and light to prevent spoilage. Key methods include dehydrating meat and produce, sealing dry goods in Mylar bags with oxygen absorbers, and mastering high-calorie recipes like pemmican or hardtack which can last for years when stored correctly.

Understanding the Enemies of Food Storage

Before you start processing food, you must understand what causes it to rot. Food spoilage is primarily driven by five factors: light, oxygen, moisture, temperature, and pests. To create food that lasts ten, twenty, or even thirty years, you must eliminate as many of these variables as possible. For a broader prep mindset, explore our emergency preparedness collection.

Moisture is the most significant threat because it allows bacteria, yeast, and mold to thrive. Most long-term storage methods focus on reducing moisture content to below 10%. Oxygen leads to oxidation, which causes fats to go rancid and destroys essential vitamins. Light, particularly UV rays, breaks down the molecular structure of food, leading to discoloration and nutrient loss.

Temperature plays a massive role in the chemical breakdown of food. For every 10-degree Fahrenheit drop in temperature, the shelf life of your stored food roughly doubles. Finally, pests like weevils or rodents can compromise an entire year’s worth of prep in a single night if your containers aren't durable.

The Art of Making Pemmican: The Ultimate Survival Food

Pemmican is often called the ultimate survival food because it is calorie-dense, portable, and can last for decades without refrigeration. Developed by indigenous peoples in North America and later used by fur traders and polar explorers, it consists of only two main ingredients: dried lean meat and rendered fat. For the bigger survival framework behind that mindset, read The Survival 13.

Step 1: Prepare the Lean Meat

Use lean cuts of beef, bison, or elk. Fat is the enemy during the drying stage because it can go rancid if not processed correctly. Slice the meat into very thin strips and dehydrate it until it is brittle enough to snap. If you can bend it, it still has too much moisture.

Step 2: Grind the Meat into Powder

Once the meat is bone-dry, grind it into a fine powder. You can use a food processor, a blender, or a traditional mortar and pestle. The goal is to create a fibrous "fluff" that will easily absorb the fat.

Step 3: Render the Fat

This is the most critical step. You cannot use raw fat or butter. You must render tallow (beef fat) or lard until all the water has evaporated and the impurities are strained out. Melt the fat over low heat until it is a clear liquid, then pour it through a cheesecloth.

Step 4: Mix and Set

Combine the powdered meat and the liquid fat in a 1:1 ratio by weight. You can add a small amount of dried berries (like Saskatoon berries or blueberries) for vitamin C, but ensure they are also bone-dry. Pour the mixture into a shallow pan or molds and let it firm up. Once solid, cut it into bars and wrap them in wax paper or seal them in Mylar bags.

Key Takeaway: Pemmican provides high-fat, high-protein energy in a small package, making it the gold standard for portable, long-term survival nutrition. For a broader gear setup, the bushcraft collection is a strong next step.

Hardtack: The Survival Bread That Never Dies

Hardtack, also known as "pilot bread" or "sea biscuit," has been a staple for sailors and soldiers for centuries. It is essentially a cracker with almost zero moisture. While it is hard enough to break a tooth if eaten dry, it provides necessary carbohydrates and can be softened in soups or coffee. If you want a broader look at long-lasting rations, read How to Make Survival Food for Any Adventure.

Step 1: The Dough

Mix two cups of flour with about half a cup to three-quarters of a cup of water and one teaspoon of salt. The dough should be stiff and dry. If it sticks to your hands, add more flour.

Step 2: Shape and Poke

Roll the dough out to about half an inch thick. Cut it into squares. Use a skewer or a fork to poke holes all the way through the biscuits. These holes, called "docking," allow the last remnants of steam to escape during baking, ensuring the interior is completely dry.

Step 3: Bake Slow and Low

Bake the squares at 300°F for 30 minutes, then flip them and bake for another 30 minutes. Turn off the oven and let them sit inside until they are completely cool and rock-hard.

Step 4: Storage

Because hardtack contains no fats or oils, it won't go rancid. As long as you keep it away from moisture and weevils, it will remain edible for years. Store it in an airtight container or a glass jar.

Note: To eat hardtack without dental injury, soak it in liquid for several minutes or fry it in fat to make a "skillygalee."

Step-by-Step Guide to Dehydrating Food at Home

Dehydration is the most accessible way to start making survival food. By removing 90-95% of the water content, you stop the growth of microorganisms. While we often include high-quality freeze-dried meals in our BattlBox missions, knowing how to dehydrate your own garden harvest is a foundational skill. For camp-meal gear ideas, browse our cooking collection.

Step 1: Prepare your produce. / Slice fruits and vegetables into uniform pieces to ensure they dry at the same rate. Blanching vegetables like carrots, broccoli, and potatoes in boiling water for two minutes before drying helps preserve color and texture.

Step 2: Set the correct temperature. / Use 135°F for fruits and vegetables and 160°F for meats. Drying too fast at a high temperature can cause "case hardening," where the outside dries but traps moisture inside, leading to rot.

Step 3: Check for dryness. / Fruits should be leathery and not sticky. Vegetables should be brittle and "clink" when dropped into a glass jar. Meats (jerky) should crack when bent but not snap entirely.

Step 4: Condition the food. / Place the dried food in a clear jar for 7-10 days. Shake it daily. If you see any condensation on the glass, the food isn't dry enough and needs to go back into the dehydrator.

Bottom line: Dehydration significantly reduces the weight and volume of your food, making it ideal for bug-out bags or emergency kits. For a closer look at the method itself, read How to Make Dehydrated Camping Food.

Dry-Pack Canning with Mylar and Oxygen Absorbers

If you want to store bulk dry goods like rice, beans, oats, or pasta for 20-30 years, Mylar bags are your best friend. This method creates an oxygen-free environment that prevents spoilage and kills any insect larvae that might be present in the grain. For a side-by-side look at the tradeoffs, read Is It Better to Dehydrate or Freeze Dry Food?.

Why Mylar Works

Mylar is a metalized polyester film that acts as a superior barrier against gas and light. Unlike standard plastic bags, oxygen cannot permeate Mylar. When combined with an oxygen absorber (a small packet of iron powder), the oxygen level inside the bag drops to less than 0.01%.

The Sealing Process

1. Fill the bag: Pour your dry goods into the Mylar bag, leaving about three inches of headspace at the top.
2. Add the absorber: Drop in the appropriate size oxygen absorber. For a one-gallon bag, use a 300cc to 500cc absorber. For a five-gallon bag, use 2000cc to 2500cc.
3. Seal the edge: Use a dedicated heat sealer or a standard flat iron (hair straightener) on its highest setting. Run the iron across the top edge of the bag, leaving a small gap to squeeze out excess air, then finish the seal.
4. Label and store: Write the date and the contents on the bag. Place the sealed Mylar bags inside a food-grade plastic bucket for protection against rodents.

Myth: A vacuum-sealed appearance is required for a good seal. Fact: Oxygen absorbers only remove oxygen (which is 21% of our atmosphere). The remaining nitrogen will stay in the bag, so it may not look "vacuum-packed," but it is still effectively preserved.

Pressure Canning for Long-Term Protein

While dehydration is great for snacks, pressure canning allows you to store complete meals, meats, and low-acid vegetables at room temperature for several years. Unlike water-bath canning, which is only safe for high-acid foods like pickles and jams, pressure canning reaches 240°F, which is necessary to kill Clostridium botulinum spores. If you also want a compact way to boil water off-grid, the Kelly Kettle Trekker & Hobo Stove Bundle fits the same preparedness mindset.

The Basic Process:

1. Sanitize: Clean your jars, lids, and rings thoroughly.
2. Pack: Place raw or lightly browned meat into the jars, leaving one inch of headspace. You do not need to add liquid to meat; it will create its own broth.
3. Vent: Place the jars in the pressure canner with two inches of water. Secure the lid and let steam vent for 10 minutes before placing the weight or closing the valve.
4. Process: Maintain the correct pressure (usually 10-15 lbs depending on altitude) for the duration required by the recipe (usually 75-90 minutes for meat).
5. Cool: Let the canner depressurize naturally. Do not force it. Once cool, check the seals on the jars.

Important: Never attempt to can meat or vegetables in a standard pot or a water-bath canner. Only a dedicated pressure canner provides the heat necessary for safety.

Choosing the Right Gear for Food Preservation

To build a serious survival pantry, you need the right tools. We often see people try to cut corners with cheap equipment, only to lose hundreds of dollars in food. If you are serious about this, invest in a quality compact survival card with a knife. A standard "stacked" model works, but "square" models with rear-mounted fans provide more even airflow.

A vacuum sealer is excellent for short-to-medium-term storage (1-3 years), especially for frozen foods to prevent freezer burn. However, for true long-term storage, the Mylar bag and oxygen absorber combination is superior because it is more puncture-resistant and provides a better light barrier.

When selecting storage containers, look for food-grade buckets. These are marked with a "2" inside the recycling triangle (High-Density Polyethylene or HDPE). They won't leach chemicals into your food over time. Pair these with Gamma Lids, which turn a standard bucket into an airtight, easy-to-open threaded container.

Organizing and Rotating Your Survival Pantry

The most common mistake in long-term food storage is "set it and forget it." Even the best-prepared food has a shelf life. To ensure your investment doesn't go to waste, you must implement a FIFO (First In, First Out) system. If you want to keep building your system, get expert-curated gear delivered monthly.

Inventory Management Tips:

• Clear Labeling: Always use a permanent marker to write the date of preparation and the "use by" date on every container.
• Accessibility: Store the oldest items at the front of the shelf and the newest at the back.
• Regular Audits: Every six months, check your inventory. If you notice a bag of rice is nearing its five-year mark, bring it into your daily kitchen rotation and replace it with a fresh, long-term sealed bag.
• Climate Control: Keep your food in the "Golden Zone"—between 40°F and 60°F. Avoid storing food in uninsulated garages or attics, as heat spikes will rapidly degrade the nutrients.

Key Takeaway: Food storage is a living system. Rotate your supplies into your regular meals to ensure nothing expires and you are familiar with how to cook your survival rations.

Practicing the Skills

Don't wait for a crisis to try making pemmican or hardtack for the first time. Start small. Dehydrate a batch of apples or make a small tray of jerky this weekend. Testing your storage methods allows you to find what your family actually likes to eat.

At BattlBox, we believe that self-reliance is a journey of continuous learning. Our missions are designed to get high-quality gear into your hands so you can test it in the field. Whether you are using a new Überleben Stöker stove to cook your stored rice or using a portable stove to process food outdoors, the goal is familiarity. The best gear in the world won't save you if you don't have the skills to back it up.

Conclusion

Building a long-term survival food supply is one of the most empowering steps you can take toward total preparedness. By mastering dehydration, pressure canning, and dry-pack storage with Mylar, you move beyond the "emergency kit" mindset and into a lifestyle of true self-sufficiency. Remember to focus on nutrient density, keep your storage area cool and dark, and always rotate your stock. Our mission is to provide you with the gear and the knowledge to thrive in any environment. Start today by preserving just one week's worth of food, and start your BattlBox subscription. Adventure. Delivered.

Bottom line: Success in long-term food storage comes down to controlling the environment and choosing the right preservation method for each food type.

FAQ

How long does home-dehydrated food actually last?

When stored in an airtight container in a cool, dark place, most dehydrated fruits and vegetables last about 1 year. If you seal them in Mylar bags with oxygen absorbers and keep them in a temperature-controlled environment, you can extend that shelf life to 5–10 years. For more storage tips, see How to Store Survival Food.

Can I make my own freeze-dried food without a machine?

While you can "dry-freeze" small items by leaving them in the back of a freezer for several weeks, it is not a reliable method for long-term storage. True freeze-drying requires a vacuum pump and extreme cold to sublimate moisture, so a dedicated home freeze-dryer is necessary for professional-level results. If you're mapping the bigger picture, How to Prepare Long Term Food Storage is a useful companion read.

What is the best food to start with for a beginner?

White rice, dried beans, and rolled oats are the easiest "entry-level" survival foods. They are inexpensive, have naturally low moisture content, and can last for 20–30 years when sealed in Mylar bags with oxygen absorbers.

Is it safe to store flour for the long term?

White flour can be stored for about 10 years in Mylar with oxygen absorbers, but it can develop a "stale" taste over time. It is often better to store whole wheat berries, which can last 30+ years and can be ground into fresh flour using a manual grain mill when needed.