A. In Sonora, it is all about the flour tortilla. In Southern Mexico, it is all about the corn tortilla. After a tough battle, we decided to make corn and flour in house. This was much more complicated than we thought. The process for making corn tortillas from scratch involves boiling corn, grinding it, and mixing it, all just to get the masa. This process, called nixtamalization, unlocks an incredible amount of nutrients not found in “add water” masa powder. Then the masa is pressed into tortillas and cooked. For flour tortillas, each ingredient is mixed in with water that has to be an exact temperature. After a period of time to let the dough rise, the tortillas are pressed and cooked.