To tell if rice is too moist for storage, feel for clumps, tackiness, or a musty smell—dry rice should be hard and loose. To dry it, spread it in a thin layer on trays in a warm, dry area with airflow for 24–48 hours, or use an oven or dehydrator at low heat. Store only when fully dry and cool.
🧪 How to Check If Rice Is Too Moist for Storage
You don’t need a lab-grade moisture meter (though they do exist). Use your hands, your eyes, and a little common sense.
Here’s what I look for:
- Touch: Dry rice should feel hard and crisp. If it feels tacky, slightly pliable, or clings together at all—it’s too moist.
- Sound: Pour some rice into a metal bowl. If it sounds dull instead of sharp and tinkly, there may be moisture content.
- Stick Test: Grab a handful. If any grains stick to your palm or to each other, they need drying before storage.
- Condensation: If rice has been kept in a container or bag and shows signs of fogging or clumping, don’t store it yet.
💡 Tip: Brown rice is more likely to retain moisture due to the oils in the bran layer. If you’re storing brown rice, also check out Why Brown Rice Doesn’t Store As Long (And How to Maximize Its Shelf Life).
🌬️ How to Dry Rice Before Long-Term Storage (Step-by-Step)
Here’s the method I’ve used for years—safe, simple, and low effort.
Step 1: Spread It Out
Lay the rice in a thin layer (no more than ½ inch deep) on a clean baking sheet or towel. Avoid stacking or piling.
Step 2: Choose a Drying Location
Use a spot with good airflow and low humidity. A dry pantry, a sunny windowsill, or even a countertop with a fan blowing across it works well. Avoid bathrooms, basements, or garages unless they’re climate-controlled.
Step 3: Stir Occasionally
Every 6–8 hours, give the rice a good shake or stir. This helps moisture escape evenly.
Step 4: Let It Sit for 24–48 Hours
For most white rice, 24 hours is usually plenty. If it’s humid or the rice still feels soft, give it another day. The grains should feel completely hard and flow freely through your fingers.
Optional: Use a Dehydrator (For Big Batches)
If you’ve got a dehydrator with a low heat setting (95°F–115°F), you can speed things up. Just use mesh trays and avoid overloading.
✅ Once Dry, Store It the Right Way
Now that your rice is ready, don’t undo your work by storing it wrong.
- Use 5-mil or thicker mylar bags to block light and moisture.
- Add oxygen absorbers—typically 2,000cc for a 5-gallon container.
- Keep rice in a cool, dark place like a basement, pantry, or root cellar.
For a full walk-through, see How to Store Rice Long Term (The Safest and Simplest Way).
And if you’re comparing containers? Take a look at Mylar vs. Plastic Containers for Storing Rice to help you decide what fits your space and budget.
🚩 Final Thoughts
Moisture is one of the fastest ways to ruin an otherwise good batch of rice in long-term storage. It might not seem like a big deal—especially if the grains just feel slightly soft—but even small amounts of excess moisture can invite mold, spoilage, or (worst of all) botulism when sealed in airtight containers.
Moist rice might not seem like a problem at first glance—but sealing it up without drying it can turn your whole batch into a science experiment. Take the time to test it and dry it properly before sealing it for the long haul. Your future self will thank you.
Want to be extra sure your seal is airtight? Check out How to Test If Your Mylar Seal Is Airtight (Without Opening It) before you stash your next batch.
Anne James—lovingly known as Jelly Grandma—is a professional canner, seasoned home cook, and lifelong preserver of traditional Southern skills. With over 55 years of hands-on experience in canning, gardening, cooking, and quilting, Anne brings generations of wisdom to every guide she writes.
Featured in both local media and by national brands like Hershey, Anne now shares her knowledge through PreservingSweetness.com and her YouTube channel, helping others rediscover the “old ways” of living well and making things from scratch.