Ambient tortillas that have just a touch of preservative to allow it to be outside of the fridge for 20 days, which isn't as long as some tortillas and bread but we think we have come up with a happy combo of great taste and convenience. 13 x 15cm white corn tortillas, essential for making large tacos, quesadillas, enchiladas or mopping up sauces and when a little older fry for tostadas, totopos, flautas and crispy tacos. Tortillas must be served warm.