*Neither the Mission nor the Tia Rosa brand tortillas showed any signs of mold after more than one month! After 35 days we discarded the tortillas and ended the test.


These tortillas lasted a surprisingly long time! Over a month on the pre-packaged varieties. A few things that we learned during our test:

• Make sure that your package of tortillas stays out of the sun at all times. If you leave package out in the sunlight, condensation will form inside the plastic packaging and speed the molding process.
• Keep your tortillas inside of their bag at all times. As long as they stay away from the air, your tortillas will remain soft and pliable otherwise, if left outside it won't take long before they become hard and brittle.

For more extended trips, we've also tested out a second type of storage - vacuum packing! We vacuum-sealed several tortillas using a FoodSaver for extended trips.

We packed ten tortillas to a vacuum-pack with pieces of parchment paper between each tortilla to prevent them from sticking together.  Although this creates a super hard package in your backpack; it also prevents the tortillas from bending and breaking apart.  Using this method, we were able to open a couple of days worth of tortillas at a time, and feel confident that our remaining stash was well-kept. When vacuum-sealing tortillas, remember to always place a layer of wax paper or bakery paper between each tortilla. This will prevent them from sticking together and forming one large 'tortilla cake'.