Dozens of common foods can last years or even decades when stored properly. White rice, honey, dried beans, canned goods, and powdered milk are among the most reliable options, with shelf lives ranging from 2 years to essentially indefinite. The key variables are always the same: moisture, oxygen, temperature, and light.
White Rice
White rice is one of the longest-lasting staple foods available. Sealed in an airtight container with oxygen absorbers and kept in a cool location, polished white rice stores well for 25 to 30 years. Even at a steady 70°F, it holds up for about 10 years in oxygen-free packaging. Once you open the container, plan to use it within one to two years.
The best containers for long-term rice storage are food-safe plastic (PETE) containers, glass jars, or Mylar bags. Oxygen absorbers, which are small packets sold at food storage supply stores, pull remaining oxygen out of the sealed container and help prevent insect infestation. Brown rice, by contrast, contains oils that cause it to go rancid within 6 to 12 months, making it a poor choice for long-term storage.
Honey
Honey is the closest thing to a food that never expires. Archaeologists found edible honey in the tomb of King Tutankhamun, preserved for over 3,000 years. Its longevity comes from a combination of very low water activity, high sugar concentration, and natural antimicrobial compounds like organic acids and flavonoids. Bacteria simply can’t grow in an environment with so little available water.
A study published in PLOS One tested honey samples after 15 to 17 years of storage and found that the vast majority still retained antimicrobial properties. Honey’s composition does shift slowly over time, and flavor or color may change, but it remains safe to eat. Store it in a sealed glass or food-safe plastic container at room temperature, away from direct sunlight. If it crystallizes, that’s normal and doesn’t indicate spoilage. Gentle warming will return it to liquid form.
Dried Beans and Legumes
Dried beans, lentils, and chickpeas are excellent long-term protein sources. A Brigham Young University study found that pinto beans stored for up to 30 years still had greater than 80 percent acceptance by a consumer taste panel for emergency food use. The protein, carbohydrate, and mineral content remains essentially unchanged during decades of storage.
The main trade-off with age is texture. As dried beans sit, the seeds harden progressively, which means older beans take significantly longer to rehydrate and cook. Soaking them overnight and using a pressure cooker can help. For storage, the same approach that works for rice applies here: sealed containers, oxygen absorbers, and cool temperatures. Under those conditions, dried beans can last 10 to 30 years.
Canned Goods
Canned foods are shelf-stable by design, though their lifespan depends on acidity. Low-acid canned goods, including meats, soups, stews, vegetables like corn, carrots, peas, and beans, last 2 to 5 years. High-acid canned goods, such as tomatoes, citrus juices, pickles, and fruit, have a shorter window of 12 to 18 months because the acid gradually reacts with the can lining.
One important detail: “best by” and “sell by” dates on cans are about quality, not safety. The USDA confirms that, except for infant formula, these dates are not federally required and don’t indicate when food becomes dangerous. A can past its printed date is often still perfectly fine. What actually signals a problem is physical damage. If a can is bulging, leaking, swollen, cracked, or spurts liquid when opened, throw it away. Discolored, moldy, or foul-smelling contents are also signs of contamination, potentially including botulism toxin.
Powdered Milk
Nonfat dry milk lasts 3 to 5 years at cool temperatures when stored away from moisture and oxygen. The main enemy is heat: at around 50°F, powdered milk showed minimal flavor changes even after 52 months in one storage study from Utah State University. At warmer temperatures, the shelf life drops to as little as 3 months before off-flavors develop.
Oxygen absorbers make a noticeable difference here, minimizing the stale taste that develops as milk powder oxidizes. Store it in sealed glass jars, food-grade cans, or Mylar bags. Once opened, keep it in a cool, dry place and use it within a few months. Whole milk powder has a much shorter shelf life because the fat content turns rancid, so nonfat is the better choice for long-term storage.
Salt, Sugar, and Freeze-Dried Foods
Pure salt and white sugar last indefinitely when kept dry. Neither supports microbial growth, and neither breaks down chemically over time. They may clump or harden from moisture exposure, but that doesn’t affect safety or usability. Store them in airtight containers and they’ll outlast everything else in your pantry.
Freeze-dried foods, which have had nearly all their moisture removed through a vacuum process, typically last 25 to 30 years in sealed packaging. This category includes freeze-dried fruits, vegetables, and even complete meals sold by emergency food companies. They’re lightweight, retain most of their nutritional value, and rehydrate quickly with water. The downside is cost: freeze-dried products are significantly more expensive per serving than dry staples like rice and beans.
Cooking Fats and Oils
Fats are the weak link in any long-term food storage plan. Vegetable oils typically last 1 to 2 years unopened before oxidation makes them taste off and potentially harmful. You’ll know an oil has gone bad when it darkens, develops an unpleasant smell, or smokes at lower temperatures than expected.
Coconut oil tends to last longer than most vegetable oils, around 2 years, because of its high saturated fat content, which resists oxidation. Rendered animal fats like lard or tallow last about a year at room temperature, longer if refrigerated. If you’re building a deep pantry, plan to rotate your cooking fats more frequently than your grains and canned goods.
Pemmican
Pemmican, a traditional survival food made from dried meat and rendered fat, stores well when prepared correctly. Simple recipes using just meat and fat last the longest. In an airtight container at room temperature (ideally between 50°F and 60°F), pemmican keeps for 3 months to about a year. Vacuum-sealed and kept cool, it lasts over a year. Frozen, it can remain edible for 5 years or more.
Adding dried fruit or other ingredients shortens the shelf life because of the extra moisture they introduce. Temperature swings are particularly damaging to pemmican, so consistent, cool, dark storage matters more here than with many other long-term foods. If you make it at home, sanitize everything and eliminate as much moisture as possible during preparation.
Storage Principles That Apply to Everything
Across all these foods, the same four factors determine how long they last. Oxygen causes oxidation, which degrades fats and vitamins. Moisture enables mold and bacterial growth. Heat accelerates every chemical reaction that breaks food down. Light raises temperatures and can trigger specific degradation pathways in fats and vitamins.
The practical takeaway: store long-term foods in airtight containers, in the coolest and darkest spot you have, with oxygen absorbers when possible. A basement or interior closet that stays below 70°F will dramatically outperform a garage that swings between 40°F in winter and 100°F in summer. Rotate your stock by using older items first and replacing them, especially for foods like oils and powdered milk that have shorter windows. Label everything with the date you sealed it, not just the manufacturer’s printed date.