Tortilla — hand press, comal, and the puff

Corn tortillas have been made continuously in Mesoamerica for at least 10,000 years. The tortilla press (tortilladora) replaced hand-patting in commercial production from the mid-20th century but hand-pressing remains the standard in traditional households.

The corn tortilla is the foundational food of Mexican cuisine — a thin, round disc of nixtamalized masa cooked on an ungreased comal (flat griddle) until it puffs with steam, signalling correct hydration and comal temperature. The technique has three stages: pressing, first cook, and the flip-and-puff. Pressing: a ball of masa (approximately 30g, the size of a golf ball) is placed between two sheets of plastic (cut from a zip-lock bag — the traditional choice) and pressed in a tortilla press (tortilladora) to approximately 2mm thickness. Hand-pressing is done by patting the dough between the palms in a circular motion, rotating the tortilla a quarter-turn with each press — a skill requiring years to master. First cook: the raw tortilla is placed on a preheated comal (medium-high heat, a drop of water should dance and evaporate immediately) for 30–45 seconds until the underside has dried and shows faint browning at the edges. Flip: the tortilla is flipped and cooked for 60–90 seconds until the first side shows light browning. Second flip and puff: flipped back to the original side, the tortilla should puff immediately, inflated by steam escaping from the heated starch. The puff indicates complete cooking and the creation of a light, layered internal structure.

A freshly cooked corn tortilla is one of the most flavour-complete simple foods in world cuisine: earthy, mineral, slightly sweet from the nixtamal, with char notes from the comal and a fragrance of warm masa that is deeply specific to Mexico.