Mexico Tortilla Prices Rise as Iran War Fuels Inflation

Corn is at its cheapest in years. Tortillas are going up anyway. The transmission mechanism is not the field but the fuel tank—and the fuel tank is connected to a strait 13,000 kilometers away.

The Mexico tortilla price increase takes effect today, April 15, as producers across the country begin adjusting prices by 2 to 4 pesos per kilo despite a direct public rebuke from President Claudia Sheinbaum. The Rio Times, the Latin American financial news outlet, reports that the increase illustrates the clearest example yet of how the Iran war’s economic impact is reaching consumers in Latin America’s second-largest economy through fuel and transport costs rather than commodity prices.

The Mexico Tortilla Price Paradox

Sheinbaum told reporters on Tuesday that “there is no reason for the tortilla price to increase, because corn is at its lowest level, I believe in history.” She is correct about the grain: maize prices are near multi-year lows, and the harina de maíz producer Minsa announced it would not raise flour prices. Maseca, the largest producer, confirmed a modest increase of 450 pesos per tonne—roughly 25 centavos per kilo of tortillas.

Homero López, president of the Consejo Nacional de la Tortilla, responded bluntly that the president “doesn’t have all the information” and that “it is already too late” to stop the increase. He said the sector has absorbed a 16% cost deficit over three years without raising prices, and that the drivers are not corn but gas, diesel, spare parts for machinery, transport, and insecurity-related costs. Production costs now reach 25 pesos per kilo, while the average retail price sits around 22–24 pesos in most of the country.

The Fuel Subsidy That Holds the Line

Sheinbaum provided the most revealing number of the week when she disclosed that without the federal fuel subsidy, gasoline would exceed 30 pesos per liter and diesel would reach 32–33 pesos. The government currently absorbs approximately 6–7 pesos per liter through the elimination of the IEPS fuel tax, keeping retail gasoline near 24 pesos. With Brent at $100–103 per barrel, the subsidy’s fiscal cost is substantial and growing.

The diesel price is the critical link to the tortilla. Every kilo of tortillas sold in Mexico City has been transported by truck from a mill, using diesel-powered vehicles that also deliver the corn from the field to the mill. When diesel costs rise, every step of the chain absorbs the increase—and eventually passes it to the consumer, regardless of what the grain itself costs.

War-to-Table Inflation Across Latin America

Mexico’s March inflation was 4.59% annually, above the central bank’s target, with food prices running at 5.78%. The pattern mirrors Brazil, where a 65% diesel price gap behind import parity has created parallel pressures on transport-dependent supply chains. The IMF’s April WEO specifically warned that “smaller economies are more negatively affected” by the war’s commodity transmission, but even Mexico—a net energy importer that produces most of its own fuel—cannot fully insulate consumers.

Sheinbaum announced she will meet this week with gasolineros, Pemex, Profeco, and the Agriculture Ministry to review fuel and food pricing. The tortilla sector’s response was that the meeting comes too late: prices are moving today, and each of Mexico’s 90,000 tortillerías will set its own price based on its own costs. For the millions of Mexican families that spend a significant share of their income on this single staple, the war in Hormuz has arrived—not as a geopolitical abstraction, but as 2 to 4 extra pesos on every kilo they buy.

Related Coverage: IMF WEO: Latin America Grows 2.3% as War Reshapes Winners and Losers • Brazil Diesel Crisis: Petrobras Defasagem and Shortage Risk