Scientists in Mexico develop tortilla for people with no fridge

MEXICO: Peering through a microscope, food scientist Raquel Gomez studies microorganisms that add nutrients and preserve tortillas for several weeks without refrigerators -- a luxury in impoverished Mexican communities. https://timesofindia.indiatimes.com/world/rest-of-world/scientists-in-mexico-develop-tortilla-for-people-with-no-fridge/articleshow/121127698.cms