How Long Corn Tortillas Last in the Refrigerator

Corn tortillas last 7 to 10 days in the refrigerator when stored properly

Corn tortillas keep longer in the refrigerator than on the counter because cold slows the mold and bacteria that cause them to spoil. An unopened package will last toward the upper end of that range—closer to 10 days. Once you open the package, they typically last 7 to 8 days if you seal them well after each use. The exact timeline depends on how fresh they were when you bought them and how consistently you keep them cold.

The key is that corn tortillas are more prone to mold than flour tortillas because they contain less fat to act as a preservative. Refrigeration is your best defense against mold growth, which is why the package often recommends it. If you notice any soft spots, discoloration, or a sour smell, discard them—these are signs mold has begun to grow.

Key Takeaways

• Unopened packages of corn tortillas last about 10 days in the refrigerator; opened packages last 7 to 8 days.
• Store tortillas in an airtight container or resealable bag to prevent them from drying out and absorbing odors from other foods.
• Corn tortillas mold faster than flour tortillas because they lack the fat content that acts as a natural preservative.
• Freezing corn tortillas extends their life to 6 to 8 months and is the best option if you won't use them within a week.

The best way to store corn tortillas in the refrigerator

Transfer your tortillas to an airtight container or a resealable plastic bag as soon as you open the package. This step matters more than you might think: tortillas absorb moisture and odors from the air and from neighboring foods. A container with a tight seal keeps them from drying out and prevents them from picking up the smell of onions, garlic, or leftover fish from other shelves.

If the original package has a resealable top, you can use that instead of transferring them, but make sure it closes completely. Press out as much air as possible before sealing—this reduces the space where mold spores can grow. Store the container on a middle shelf where the temperature is most stable, away from the back wall where it's coldest and away from the door where it's warmest.

Signs that corn tortillas have gone bad

Mold is the main enemy of corn tortillas in the refrigerator. Look for any fuzzy growth, dark spots, or discoloration on the surface or edges. Mold can grow on just one or two tortillas in a stack, so check a few from different parts of the package, not just the top one.

A sour or fermented smell is another clear sign they've spoiled. Fresh corn tortillas have a mild, slightly sweet corn smell. If they smell tangy or off, throw them out. Texture changes also matter: if they feel slimy or unusually soft and mushy (beyond the normal softness of a cooked tortilla), discard them. When in doubt, throw them out—the cost of a package is far less than the risk of foodborne illness.

Freezing corn tortillas for longer storage

Freezing is the best option if you buy tortillas in bulk or know you won't use them within a week. Corn tortillas freeze well and last 6 to 8 months in the freezer without significant loss of quality. Stack them with parchment paper between each one so they don't stick together, then place the stack in a freezer bag and remove as much air as possible before sealing.

To use frozen tortillas, thaw them at room temperature for about 30 minutes, or warm them directly from frozen in a skillet or microwave. Warming them from frozen actually works better than thawing first—they'll be softer and more pliable. A few seconds in a dry skillet over medium heat, or 10 to 15 seconds in the microwave wrapped in a damp paper towel, will bring them back to the texture of fresh tortillas.

Why corn tortillas spoil faster than flour tortillas

Corn tortillas contain no added fat, while most flour tortillas include lard, shortening, or oil. Fat acts as a natural preservative by creating a barrier that slows moisture loss and inhibits mold growth. This is why corn tortillas dry out faster on the counter and mold faster in the refrigerator—they lack that protective layer.

Some brands add preservatives like calcium propionate to extend shelf life, but even those tortillas benefit from refrigeration. Check the ingredient list: if you see preservatives listed, the tortillas will last slightly longer, but refrigeration is still your best bet for keeping them fresh. Homemade or artisanal corn tortillas, which contain no preservatives, spoil the fastest and should be used within 3 to 5 days even in the refrigerator.

Organizing your refrigerator to keep tortillas fresh

Store tortillas on a middle shelf where the temperature stays between 35°F and 40°F. The back of the refrigerator is colder and can cause them to harden; the door is warmer and exposes them to temperature swings every time you open it. A middle shelf also keeps them away from raw meat on lower shelves, which reduces cross-contamination risk.

Keep tortillas separate from strong-smelling foods like onions, garlic, or aged cheese. Tortillas are porous and will absorb these odors, making them taste off even if they're still safe to eat. A dedicated container or section of a shelf helps prevent this. If your refrigerator tends to smell, an open box of baking soda on another shelf will help neutralize odors and protect your tortillas.

What to do if tortillas start to dry out

Drying is different from spoiling and is usually reversible. If your tortillas feel stiff or brittle but show no signs of mold or off-smells, you can soften them. Wrap them in a damp paper towel and microwave for 15 to 20 seconds, or place them in a covered skillet over low heat for a minute or two. The moisture will redistribute through the tortilla and restore some softness.

Prevention is easier than rescue: make sure your storage container is truly airtight and that you're not leaving the package open between uses. If you find yourself with a stack of dried-out tortillas that are still safe to eat, cut them into strips and fry them for tortilla chips, or crumble them into soups and stews where the texture won't matter.

Frequently Asked Questions

Can I leave corn tortillas on the counter instead of the refrigerator?

You can, but they'll only last 1 to 2 days before mold appears. Refrigeration extends that to 7 to 10 days. If you use tortillas daily and go through a package quickly, the counter is fine. If you buy them less often or use them slowly, the refrigerator is worth it.

Do corn tortillas need to be refrigerated right away?

Not immediately, but sooner is better. If you open a package and plan to use most of it within a day or two, leaving it on the counter is low-risk. If you'll use them over a week or longer, refrigerate them as soon as you open the package to prevent mold.

Can I refreeze corn tortillas after thawing them?

Yes, you can refreeze them, though the texture may suffer slightly with each freeze-thaw cycle. If you thawed them in the refrigerator and they're still cold, refreezing is safe. If they sat at room temperature for more than 2 hours, discard them instead.

Why do my refrigerated tortillas smell sour after a few days?

A sour smell means fermentation has begun, usually from mold growth that's not yet visible. This happens when the container isn't airtight or when the refrigerator temperature is too warm. Discard them and check that your storage container seals completely and your fridge is set to 40°F or below.

Are corn tortillas still good if they're hard but have no mold?

Yes, hardness alone doesn't mean they've spoiled. Hard tortillas are safe to eat and can be softened by warming. Mold, sliminess, or sour smell are the real signs of spoilage. Hard tortillas are just dried out, which is a texture problem, not a safety problem.