When we talk about food safety, we often focus on what happens in the kitchen or restaurant — but the journey to safe food begins long before that. One of the most overlooked but critical components of food safety is water. Whether it’s used to irrigate crops, clean equipment, wash produce, or become part of a final product, water can be either a protector or a contaminant. In Jamaica, where agriculture and agro-processing play vital roles in our economy, water safety is essential at every stage.

Water in Agriculture: Irrigation Matters

Farmers across Jamaica rely on water to grow crops, but not all water is created equal. Irrigation water that comes from rivers, ponds, open canals, or untreated catchments can carry bacteria like E. coli, Salmonella, or parasites such as Cryptosporidium, especially if those sources are contaminated by animal waste, sewage, or agricultural run-off. The Ministry of Agriculture and Fisheries, through agencies like the Rural Agricultural Development Authority (RADA), encourages the use of Good Agricultural Practices (GAP), including the regular testing and treatment of irrigation water.

When contaminated irrigation water comes in direct contact with fruits and vegetables — especially those that are eaten raw — it becomes a major food safety risk. Leafy greens, herbs, tomatoes, and other produce can retain water droplets that carry harmful pathogens right into the food supply. This underscores the importance of water sampling, maintaining clean irrigation equipment, and sourcing water from regulated, low-risk supplies where possible.

Production Water in Food Processing Facilities

In food processing, water is typically classified based on its purpose: Production water and potable water. Production water is used during food processing — such as for washing raw materials, cooling equipment, or blending into products — while potable water refers to water that is safe for drinking and for direct contact with food and food-contact surfaces.

The Ministry of Agriculture and Fisheries, through agencies like the Rural Agricultural Development Authority (RADA), encourages the use of Good Agricultural Practices (GAP), including the regular testing and treatment of irrigation water.

According to local guidelines from the Ministry of Health & Wellness, and supported by the Bureau of Standards Jamaica, all water used in food processing must be of potable quality unless otherwise stated in specific standards. Water used to wash equipment, utensils, and food-contact surfaces must also meet potable standards. If not, it becomes a significant risk for cross-contamination, where bacteria can transfer from unsanitary water onto food, equipment, or packaging.

Facilities using recycled or greywater systems must ensure proper treatment and continuous monitoring. These systems can reduce water usage, but without adequate controls, they also pose risks. Food establishments are subject to regular inspections and may be required to submit microbiological and chemical test results to regulatory authorities as part of their licensing and compliance reviews.

Hot and Cold Water Requirements

In line with national food safety codes, food processing facilities are required to maintain both hot and cold running water under pressure and in sufficient quantities. Hot water — reaching at least 82°C (180°F) — is essential for effective sanitisation of food equipment, utensils, and surfaces. Cold water is just as important, as it supports proper food handling, chilling, and temperature control.

Agencies with responsibility for food safety routinely assess whether facilities have reliable water heating systems and proper plumbing in place. Inadequate access to hot or cold water can result in unsafe cleaning practices, poor personal hygiene, and temperature abuse of perishable foods — all of which compromise food safety.

Residual Chlorine Testing and Water
Treatment

Whether sourced from the National Water Commission, private wells, or harvested rainwater, all water used in food facilities must be treated and tested to ensure microbial safety. Chlorination remains one of the most common disinfection methods in Jamaica, but it’s not a one-and-done process. Residual chlorine testing must be conducted regularly to ensure disinfection has been effective and that a safe concentration of chlorine remains at the point of use.

Water used in food establishments should maintain residual chlorine levels between 0.2 and 0.5 mg/L. Too little chlorine can result in inadequate disinfection, while too much can affect taste and safety. Simple field test kits are widely available, but periodic lab testing is also advised. All records of water treatment and testing must be maintained and presented during food safety audits or inspections.

Sources of Water and Risk Assessment

Food producers must be aware of their water source — whether it’s municipal, well, or surface water — and understand the risks associated with each. Surface water sources like rivers, streams, and open reservoirs have higher chances of contamination from run-off, animal activity, and sewage. These typically require filtration and chemical treatment before they can be safely used.

Groundwater sources like wells are more protected from surface contamination, but can still contain harmful substances, such as heavy metals or harmful microbes, especially if wells are improperly constructed or maintained.

Facilities that use alternative sources like rainwater harvesting systems must ensure water is filtered, stored in clean, covered containers, and treated before use. Comprehensive risk assessments — a requirement under HACCP and other food safety schemes — help determine the likelihood of waterborne contamination and guide decisions on water treatment, testing frequency, and storage practices.

Protecting Our Food and Our Future

Water is often called the source of life. However, in food production, it can also be a source of danger if not properly managed. As Jamaica continues to invest in agriculture and food processing, water safety must remain a top priority.

By understanding water’s role in the food chain — from the field to the factory — we can better protect public health, ensure food quality, and support our farmers and food businesses. Clean, safe water isn’t just a luxury; it’s a food safety essential.

About the Author

Allison Richards is a food safety communicator, certified trainer and the founder of The Food Safety Girl, a consumer awareness platform promoting food safety in Jamaica and the Caribbean. She is the Caribbean Chapter Director for Women in Food Safety (WIFS) and host of The Big Bite Food Safety Show. With over 14 years of experience in food safety regulation, she is committed to public education and consumer empowerment. Through public education initiatives, including free community webinars, she continues to create space for learning, dialogue, and practical food safety awareness.

Allison Richards | thefoodsafetygirlja@gmail.com-