Select dried field corn or dent corn
Remove any debris and damaged kernels
Prepare a nixtamalization solution with water and food-grade calcium hydroxide
Boil the corn in the solution
Simmer until the outer skins loosen
Turn off the heat and let the corn soak
Drain the corn
Rinse the kernels thoroughly
Rub off the loosened hulls
Drain again
Grind the wet corn into a smooth dough
Add small amounts of water as needed while grinding
Knead until the dough is soft and cohesive
Cover and rest the masa before use