Food Storage Containers Compared: Buckets, Mylar Bags, Glass Jars, PETE Bottles and #10 Cans
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Quick answer: for long-term storage of dry staples like white rice, beans, wheat and pasta, the most common setup is a Mylar bag with an oxygen absorber, heat-sealed and placed inside a food-grade HDPE bucket with a tight lid. The bucket blocks pests and crushing; the Mylar blocks oxygen, light and moisture. Glass jars are pest-proof and reusable but heavy, breakable and clear. Clean PETE plastic bottles work well for small amounts of dry foods with oxygen absorbers, according to extension and home storage guidance, and #10 cans are excellent barriers but need a can sealer. Extension services stress that only dry foods with about 10% moisture or less should be sealed with oxygen absorbers.
Most emergency food needs no special container. Commercial cans, jars and sealed boxes already protect what is inside, and they rotate through the kitchen on their own. Packaging becomes important when you buy staples in bulk or want dry foods to last years rather than months.
At that point, the container is the difference between rice that is still good in five years and rice full of weevils by next summer. This comparison explains what each option does well, where it falls short and how to choose. It is part of our emergency food storage guide, which covers the whole pantry from calories to rotation.
Sources: Utah State University Extension, long-term food storage fact sheets and packaging guidance; The Church of Jesus Christ of Latter-day Saints, home storage packaging guidance for PETE bottles, pouches and cans; National Center for Home Food Preservation; U.S. Food and Drug Administration, food contact substances overview; USDA FSIS, Shelf-Stable Food Safety. Product specifications (bag thickness, absorber capacity) vary by manufacturer; follow the instructions for what you buy. General information. Checked October 2026.
What a Good Food Storage Container Has to Do
Stored food has four main enemies: oxygen, moisture, light and pests. Heat is a fifth, but no container stops it; location does.
- Oxygen causes fats to go rancid, degrades vitamins and lets insects survive.
- Moisture invites mold and bacteria, clumps flour and sugar and rusts metal.
- Light degrades color, flavor and some nutrients.
- Pests chew through thin plastic bags and cardboard with ease.
No single container blocks all four perfectly while also being cheap, light, unbreakable and easy to open. That is why many people combine two layers, such as a bag inside a bucket.
Food-Grade Plastic Buckets
Five- and six-gallon buckets made of high-density polyethylene (HDPE, recycling code 2) are the workhorse of bulk storage. Look for buckets sold as food-grade and lids with a rubber gasket.
Strengths: sturdy, stackable, rodent-resistant, inexpensive and easy to carry with a handle. A bucket holds a large amount of rice, beans or wheat.
Weaknesses: Utah State University Extension notes that HDPE buckets are not a complete oxygen barrier over long periods, so buckets alone are better for medium-term storage. Lids can be hard to open without a lid wrench. Full buckets of grain are heavy, often well over 30 pounds.
Tips:
- Use buckets only if they are food-grade and have never held non-food items like paint or chemicals.
- Screw-on “gamma” style lids make frequently opened buckets easier to use.
- Keep buckets off concrete floors and away from heat sources.
Mylar Bags
Mylar bags are pouches made of metalized polyester film layered with plastic. They block light and are far better oxygen and moisture barriers than ordinary plastic. They come in sizes from a quart to bucket liners.
Strengths: excellent barrier when properly sealed, lightweight, flexible to fit odd spaces and available in small sizes that match one or two weeks of use.
Weaknesses: rodents can chew through them, so they need an outer container in most homes. Thin bags can puncture on sharp pasta or beans. You cannot see the contents.
Sealing: Mylar must be heat-sealed. A clothes iron on a hard surface, a hair straightener or an impulse sealer all work if the seal is flat, wide and complete. Check each seal by pulling gently on both sides.
Thickness is listed in mils. Thicker bags resist punctures better and cost more. Follow the manufacturer’s guidance for your bag.
Oxygen Absorbers: The Partner to Mylar and Cans
Oxygen absorbers are small packets of iron powder that react with oxygen in a sealed container. Used correctly, they leave the inside nearly oxygen-free, which helps preserve flavor and kills insects in any life stage.
Utah State University Extension and other food storage authorities give a firm rule: only use oxygen absorbers with dry foods that have about 10% moisture or less. Sealing moist foods in a low-oxygen container can create conditions where Clostridium botulinum, the bacterium behind botulism, can grow. Suitable foods include white rice, dry beans, wheat, rolled oats, pasta and nonfat dry milk. Unsuitable foods include anything moist, such as soft dried fruit or jerky. Sugar and salt need no absorber and tend to harden if one is used.
Absorbers start working as soon as the package is opened, so work quickly, seal unused absorbers in a small glass jar and follow the capacity chart from the absorber manufacturer. Our primer on oxygen absorbers for food covers handling in more detail.
Glass Jars
Canning jars and other glass jars with tight lids are a favorite for pantry staples that get used regularly.
Strengths: completely pest-proof and impermeable to oxygen and moisture through the glass itself, reusable for decades, easy to clean and easy to see into. Vacuum sealing attachments can remove air from jars of dry goods.
Weaknesses: heavy and breakable, which matters in earthquake regions and on high shelves. Clear glass lets in light, so jars need a dark cupboard or a box. Lids and seals can fail over time. Glass also holds less per dollar than buckets.
Best uses: working pantry items like flour, sugar, oats and beans that you rotate every few months, and smaller amounts of foods with oxygen absorbers.
PETE Plastic Bottles
Clean, dry polyethylene terephthalate (PETE, recycling code 1) bottles, such as those used for some beverages, can store dry foods. Home storage guidance published by The Church of Jesus Christ of Latter-day Saints describes using PETE bottles with screw-on lids and oxygen absorbers for low-moisture foods like wheat, white rice and dry corn.
Strengths: free or inexpensive, lightweight, easy to pour from and sized for small households. They fit in kitchen cabinets and under beds.
Weaknesses: only suitable for certain dry foods, and lids must seal tightly. Bottles that held non-food products should not be used. Plastic milk jugs are not recommended because they are not good oxygen barriers.
#10 Cans
The #10 can holds a little under a gallon and is the standard size for commercially packed long-term foods.
Strengths: among the best barriers to oxygen, moisture, light and pests. Commercially packed #10 cans of dry staples are widely sold and need no home packaging.
Weaknesses: home packing requires a can sealer, which is a sizable purchase unless you can borrow one. Cans can rust in damp storage. Once opened, the contents need another container for daily use.
Side-by-Side Comparison
| Container | Oxygen barrier | Pest resistance | Light blocking | Cost | Best for |
|---|---|---|---|---|---|
| Food-grade HDPE bucket | Fair alone | Good | Good (opaque) | Low | Outer layer; medium-term bulk storage |
| Mylar bag | Very good when sealed | Fair (needs outer container) | Very good | Low to moderate | Inner layer with oxygen absorbers |
| Mylar in a bucket | Very good | Very good | Very good | Moderate | Long-term bulk staples |
| Glass jar | Very good (lid dependent) | Excellent | Poor unless kept dark | Moderate | Working pantry, small batches |
| PETE bottle | Good with tight lid | Good | Fair | Very low | Small amounts of suitable dry foods |
| #10 can | Excellent | Excellent | Excellent | Moderate to high | Commercial long-term foods |
How to Pack a Bucket With Mylar and an Oxygen Absorber
Packing your own long-term staples takes about half an hour per bucket once you have done it once. A typical process, following extension and home storage guidance:
- Gather supplies first: a clean, dry food-grade bucket and lid, a Mylar liner sized for the bucket, oxygen absorbers rated for the volume, a heat source for sealing, a marker and the dry food.
- Label the bag and bucket with the contents and date before filling.
- Place the Mylar liner in the bucket and fill it with the dry food, tapping or shaking gently to settle it. Leave enough empty bag at the top to seal comfortably.
- Open the absorber package last, take out what you need and immediately reseal the remaining absorbers in a small airtight jar.
- Drop the absorbers on top of the food, press out excess air and heat-seal the bag across its full width.
- Check the seal, fold the bag down and close the bucket lid firmly.
- Check back after a day or two. A well-sealed bag with enough absorber capacity often pulls in slightly and feels firm.
Dry staples are the natural fit for this method. Our guide to preserving rice for long-term storage covers rice specifically, and if you are setting up water storage at the same time, our comparison of water storage containers covers jugs, barrels and bladders.
Choosing Containers for a Small Apartment
City storage changes the calculus. A wall of five-gallon buckets is unrealistic for many apartments, and a 35-pound bucket on the top shelf of a closet is a hazard.
Practical options for small spaces:
- One-gallon Mylar bags in under-bed bins or plastic totes, each holding a few days to a week of a staple.
- PETE bottles lined up in the back of cabinets or a closet floor.
- A few gamma-lid buckets for the most-used staples, stored on a closet floor.
- Glass jars for the working pantry in a kitchen cupboard.
Spread the supply across several cool, dark spots rather than piling it in one hot corner. Our guide on keeping a food stockpile free of moisture and pests has more on choosing locations.
Labeling and Record Keeping
Every sealed container should carry a label with the contents, the date packed and any notes, such as whether an oxygen absorber was used. Write directly on Mylar with a permanent marker before filling, or tape a label to the bucket lid and side.
Add each container to your pantry inventory. A record of what is in each bucket or bag saves opening a dozen containers to find the beans.
Common Packaging Mistakes
- Using non-food-grade buckets, or ones that held chemicals.
- Sealing moist food with oxygen absorbers, which creates a botulism risk.
- Leaving absorbers exposed to air while working, which uses up their capacity.
- Incomplete Mylar seals that let air back in.
- Storing containers in hot spaces, where even perfect packaging loses shelf life.
- Storing brown rice or whole wheat flour long term. Their oils go rancid faster than white rice or whole wheat berries.
- Skipping labels. Unlabeled containers are hard to rotate.
Frequently Asked Questions
What is the best container for long-term food storage?
For dry staples, a heat-sealed Mylar bag with an oxygen absorber inside a food-grade bucket is a common choice, combining an oxygen barrier with pest and crush protection. Commercial #10 cans are also excellent.
Are food-grade buckets enough on their own?
Buckets protect against pests and moisture, but Utah State University Extension notes they are not a complete oxygen barrier over long periods. Adding Mylar and oxygen absorbers improves very long-term storage.
Can I use oxygen absorbers with any food?
No. Use them only with dry foods of about 10% moisture or less, such as white rice, dry beans, wheat and pasta. Moist foods should not be sealed in low-oxygen conditions because of botulism risk.
Can I store rice in plastic soda bottles?
Clean, dry PETE bottles with tight screw-on lids can store dry foods like white rice when used with oxygen absorbers, according to home storage guidance. Do not use milk jugs.
Are glass jars good for food storage?
Yes, for pest protection and frequent use, but they are heavy, breakable and let in light, so keep them in a dark cupboard and away from high shelves in earthquake areas.
The Bottom Line
Match the container to the job. Commercial packaging already protects most of a short-term pantry. For bulk staples meant to last years, combine a light and oxygen barrier, like Mylar with an absorber, with a sturdy outer layer, like a food-grade bucket. Use glass and PETE for smaller, frequently used amounts, keep everything cool and dark, and label every container so rotation stays simple.
