Universidad Autónoma de San Luis Potosí (UASLP) researchers reported aflatoxin B1 in samples linked to 16 of 30 tortillerías surveyed in the San Luis Potosí capital, according to Pulso SLP coverage dated Sept. 23, 2026. Available reporting does not detail toxin concentrations, brand names, or finished-product recalls.
State Health Secretary Leticia Mariana Gómez Ordaz said Coepris maintains permanent sanitary surveillance of tortillerías and corn mills. Results from inspector sampling are to be reported by Coepris commissioner Lucía Gabriela Rosales Ortuño, with roughly one to two months expected before a fuller readout.
For tortillería and masa-mill operators, the story is a corn-safety and incoming-grain QA reminder: aflatoxin B1 monitoring sits upstream of dough and shelf product. Do not read the UASLP sample hit rate as an enforcement action or recall notice — those steps were not described in the Pulso account.
Read the Pulso SLP report for the study framing and official comments; treat numeric levels and any enforcement follow-up as pending Coepris disclosure.
UASLP Coepris