Scientists from the University of the Philippines – Diliman College of Science’s Institute of Chemistry (UPD-CS IC) have published a comprehensive analysis of existing techniques for detecting methanol—an industrial chemical highly toxic to humans—in lambanog, a popular traditional alcoholic beverage in the Philippines.

Emphasizing that methanol can be dangerous—even fatal—at high concentrations, Kristine Anne Ladines and Dr. Cynthia Grace Gregorio aimed to identify detection techniques that are effective, affordable, and simple enough for small producers, such as micro, small, and medium enterprises (MSMEs), to use—potentially through portable or paper-based testing kits.

“Lambanog holds cultural and economic significance in the Philippines, but repeated methanol poisoning incidents have harmed its reputation and endangered lives. Many cases of death and hospitalization have been linked to unsafe, unregulated production,” Ladines said. “Given these serious public health risks, we were driven to help find solutions that empower small producers to test and ensure the safety of their products.”

By identifying affordable and practical detection methods, the review can help inform national agencies such as the Food and Drug Administration about which technologies are best suited for widespread use among small producers.

“It can guide regulatory policies to mandate methanol testing using appropriate tools, helping ensure consumer safety while supporting industry compliance,” Ladines added.

Ladines believes that government and academic institutions can support MSMEs in adopting safer production and testing methods in several ways—including training and education on safe fermentation and distillation practices, providing subsidies or grants for acquiring basic detection equipment or kits, and developing accessible technologies such as low-cost paper-based sensors tailored for field use.

The paper, titled “Finding MeOH: A literature review on methods for the determination of methanol in Lambanog and alcoholic beverages,” is published in JSFA reports, a food science journal publishing papers on food science and agriculture, with particular emphasis on the agriculture/food interface

References:

Ladines, K. A., & Gregorio, C. G. (2025). Finding MeOH: A literature review on methods for the determination of methanol in Lambanog and alcoholic beverages. JSFA reports. https://doi.org/10.1002/jsf2.229