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Access to safe drinking water is limited in many isolated areas, such as the Amazon where Indigenous peoples frequently reside. Identifying safe forms of drinking water accepted by the communities could have positive health benefits for Indigenous peoples. Many Amazon Indigenous peoples traditionally prepare and consume a fermented beverage called masato, which is frequently the only form of water consumption. Despite its widespread consumption and evidence of the health benefits of fermentation, masato remains poorly investigated. We partnered with a Shawi Indigenous community in the Peruvian Amazon to conduct participatory photography to research masato preparation, and to characterize key cultural features and to assess the presence of total and fecal coliform bacteria by using a membrane filter technique. Pictures show that masato preparation is a key part of cultural practices and that there are clear gender roles in the preparation process. We found that 100% of communal water sources (26/26) were contaminated with coliform bacteria; by contrast, fewer, 18% of masato samples (2/11), were positive for coliform. This exploratory study suggests that fermented beverages like masato merit further investigation as they represent an Indigenous method to improve water quality in Amazonian communities where water safety cannot be assured.

Rainfall variability and related hydrological disasters are serious threats to agricultural production in developing countries. Since projections of climate change indicate an increase in the frequency and intensity of climatic hazards such as flooding and droughts, it is important to understand communities’ adaptive capacity to extreme hydrological events. This research uses a case study approach to characterize the current vulnerability and adaptive capacity of the food system to hydrological hazards in Panaillo, a flood-prone indigenous community in the Peruvian Amazon. Participatory methods were utilized to examine how biophysical and socioeconomic factors constrain or enable local adaptive capacity to climatic hazards over time. Seasonal flooding was shown to strongly influence agriculture and fishing cycles. Panaillo residents have developed several adaptive strategies to adjust to hydrological extremes, such as food-sharing and the cultivation of fast-growing crops on riverbeds. However, Panaillo residents generally lack the necessary human, physical, social, and natural resources to effectively employ their adaptive mechanisms as a result of major social and environmental changes in the area. Economic development, low institutional capacity, climate variability, and the assimilation social model in Peru all have profound effects on the food system and health by affecting the ways in which adaptive strategies and traditional livelihoods are practiced. Climate change has the potential to exacerbate these socioeconomic and biophysical drivers and further compromise community food systems in the Peruvian Amazon in the future.