Although the texture of the tortilla will be altered if you decide to freeze it, it is safe and possible to do so. Allow to cool completely after cooking, then wrap tightly in cling wrap and again in foil for added protection. Place in a sealed freezer-friendly bag or container and store in the fridge for up to 2 months. To thaw, place in the fridge overnight, and then set it out on a cutting board on the counter a few hours to take the chill off before you plan to serve it. Reheat in the oven at 150°C/300°F for a few minutes until warm throughout before slicing and serving. Or reheat sliced wedges in the microwave on high for 30-50 seconds.