How to Store Rice and Beans Long Term: The NCHFP-Backed Method for 25+ Years

Somewhere in a Utah State University lab, researchers opened rice and beans that had been sealed away for 30 years and handed them to a taste panel. More than 80% still passed as good, edible food. That result is the real answer to how to store rice and beans long term, and it has almost nothing to do with the fancy container most people obsess over first. Rice and beans are cheap, filling, and about as boring and reliable as food gets, which is exactly what you want in a pantry built for a bad year, not just a bad week. The tricky part is that most of the advice floating around online is either overly cautious or dangerously casual. So I went back to the actual university food science research, mostly from Utah State University Extension and the National Center for Home Food Preservation, to lay out what really works.

What is the NCHFP-backed method, really?

The method backed by the National Center for Home Food Preservation and university extension research isn't a single trick, it's three conditions working together: the food has to be dry enough to begin with, it has to be sealed away from oxygen and moisture, and it has to sit somewhere cool and dark. NCHFP's general guidance on dried foods is blunt about this: dried foods are susceptible to insect contamination and moisture reabsorption and have to be packaged immediately after they cool, in clean, dry, insect proof containers, packed as tightly as possible without crushing the food. Skip any one of those three conditions, and you're not doing long term storage anymore, you're doing short term storage with a fancier container.

How long do mylar-bagged beans actually last?

Dry beans packed in mylar bags or #10 cans with the oxygen removed have a research backed shelf life of 10 or more years, and samples tested out to 30 years still held up well. Utah State University Extension cites a Brigham Young University study that sampled beans stored for periods stretching all the way out to 30 years, and those decades old samples still scored greater than 80% acceptance from a consumer taste panel evaluating them for emergency food use. That's a genuinely strong result. It means the beans weren't just technically edible, they still tasted and looked like food people would actually want to eat. The catch is that this shelf life only applies to beans stored in the absence of oxygen and light, since oxygen causes the natural oils in beans to go rancid, and light fades their color and can affect flavor over time.

How long does rice actually last sealed long term?

White rice, properly sealed and stored, holds good quality for 25 to 30 years according to Utah State University Extension, though the exact number depends on temperature. At a constant 70°F with an oxygen absorber in the package, rice stores well for up to 10 years. Move it somewhere cooler, ideally 40°F or below, and rice sealed in an oxygen free container can last up to 30 years. The same BYU research group sampled both polished white rice and parboiled rice stored anywhere from 1 to 30 years and found both types kept their nutrients and flavor across that entire range. One practical note once you do open a bucket or can: use the rice within 1 to 2 years after opening, since it's back to being exposed to normal air and humidity at that point, just like any bag of rice from the grocery store.

What moisture level do rice and beans need to be at before sealing?

Both rice and dry beans need to be at or under about 10% moisture content before they go into any oxygen free, sealed container, and this isn't a nitpicky detail, it's a genuine safety line. The University of Georgia's Family and Consumer Sciences Extension sets the same under-10% moisture target for bulk grain storage, noting that wheat should have a moisture content less than 10% before it goes into a sealed bucket. The reason this threshold matters so much: Clostridium botulinum, the bacteria that causes botulism, needs both an oxygen free environment and enough moisture to grow. An airtight, oxygen absorbed package is exactly the environment the bacteria wants, so keeping moisture low removes the other half of the equation it needs. Store bought dry rice and dry beans, sold specifically as dry goods, are almost always well under this threshold already, but it's worth knowing the number so you never seal up something damp, like home dried beans that didn't finish drying all the way, into an airtight package.

What containers actually work for rice and beans?

For true long term storage, your realistic options are food grade mylar bags, #10 cans lined with a food grade enamel coating, or heavy glass jars kept somewhere dark, all paired with an oxygen absorber. Mylar bags are the most common choice for a reason: they're affordable, they pack flat, and metallized mylar has a dramatically lower oxygen transmission rate than plain plastic, which is the whole point. A single #10 can holds about 5.7 pounds of polished rice, which is a handy number for figuring out how many cans you'd need for a family's supply. Glass jars work well for smaller amounts you want to keep visible, since NCHFP actually recommends glass for shorter term dry storage specifically because you can see condensation forming inside if something goes wrong, which is much harder to spot in an opaque bucket or can. If you're storing rice or beans in bulk (more than a few pounds at a time), pairing mylar bags with a sturdy outer bucket is worth reading up on separately, since the bucket protects the mylar from punctures and pests while the mylar does the actual sealing work.

Whatever container you choose, the oxygen absorber sizing follows the same general math: roughly 300 to 500 cc per gallon of rice or beans, scaling up to 2,000 to 2,500 cc for a 5 gallon quantity. Skipping the oxygen absorber and just sealing the container is a common shortcut that quietly cuts your shelf life from decades down to a few years, since the container alone rarely gets you to a true near-zero oxygen environment.

Step by step: packing rice and beans for the long haul

1. Buy rice and beans from a trusted source and inspect them for insects or discoloration before you package anything, per Utah State University Extension guidance.

2. Confirm they're dry. Store bought dry rice and beans are almost always fine, but if you dried your own beans at home, verify they're brittle and hard, not the least bit pliable.

3. Choose your container: mylar bag, enamel lined #10 can, or glass jar, based on how much you're storing and how visible you want it to be.

4. Fill the container, leaving a little headspace, and add the right size oxygen absorber last, right before sealing.

5. Seal it fully: heat seal the mylar with a clothes iron, or make sure the can lid or jar lid closes airtight.

6. Label everything with the food and the date you packed it, then store it somewhere cool, dry, and dark, ideally under 70°F.

What ruins long-term rice and bean storage?

The single biggest mistake is treating "dry" as a guess instead of a checked fact, especially with home dried beans, since sealing anything with real moisture into an airtight package is a genuine botulism risk, not just a quality problem. After that, the most common issues are skipping the oxygen absorber (relying on the container alone), storing containers somewhere hot like a garage or attic that swings through big temperature changes, and forgetting to label containers so nobody remembers what's inside or how old it is. None of these take much extra effort to avoid. They just require doing the packing step deliberately instead of rushing it.

It's also worth remembering the difference between everyday pantry storage and true long term storage. The USDA's Food Safety and Inspection Service lists a general 2 year shelf life for rice and dried pasta on its shelf stable food chart, which is the right expectation for a bag sitting in your cabinet that gets opened and closed regularly. That's a completely different scenario from rice or beans that have been verified dry, sealed with an oxygen absorber, and left untouched. Both numbers are accurate. They're just describing two different jobs.

FAQ: How to store rice and beans long term

Can you store rice and beans long term without an oxygen absorber?
You can seal them, but you'll lose most of the shelf life benefit, since the container alone rarely creates the near-zero oxygen environment that gets you into the 25 to 30 year range. Without an oxygen absorber, plan on a few years of good quality rather than decades.

Do brown rice and white rice store for the same amount of time?
No. White rice has had the oil rich bran layer removed during milling, which is exactly what gives it a much longer shelf life than brown rice, since it's the natural oils in the bran that go rancid over time. If long shelf life is the goal, white rice is the better choice.

Is it safe to store beans and rice in the same mylar bag?
It's better to keep them separate, since rice and beans absorb moisture and odors slightly differently and you'll want the flexibility to use one without opening the other. Separate bags also mean one damaged seal doesn't put your whole supply at risk.

How can you tell if long-term stored rice or beans have gone bad?
Check for an off smell, visible mold, unusual discoloration, or dampness in the container before eating anything from long term storage, and when in doubt, throw it out. Properly dried, sealed, and stored rice and beans should still look and smell like ordinary rice and beans, just possibly a little duller in color after many years.

Do you need special equipment to seal a mylar bag at home?
No. A regular household clothes iron on a low, dry setting works well for sealing mylar bags, run slowly along a folded edge with something flat underneath to keep the seam straight. Dedicated impulse sealers exist and work faster if you're packing a lot of bags, but they're not required.

What temperature should you store sealed rice and beans at?
Cooler is better. Utah State University Extension notes the best storage temperature for grains, including rice, is 40°F or below, though a constant 70°F still gets you a solid 10 year shelf life with an oxygen absorber. Avoid anywhere that swings through big temperature changes, like an uninsulated garage or attic.

You never know, but you can always be ready.

Sources: Utah State University Extension, Storing White Rice, National Center for Home Food Preservation, Packaging and Storing Dried Foods, University of Georgia FACS Extension, Preparing an Emergency Food Supply: Long Term Food Storage, USDA Food Safety and Inspection Service, Shelf-Stable Food Safety.

Related reading

• Before you bag a single grain, get the container right: food-grade buckets and mylar bags, the right way to store bulk grains.

• Storage only matters if you have water to cook with. Here's how long you can actually store water safely.

• Rice and beans are a great start for a bigger kit. See our 72-hour bug-out bag checklist for every family member.