Tap water in Cuba is not a good default choice for most international travellers. Even when local residents drink it, differences in treatment, plumbing and individual tolerance can cause stomach problems. Resort guests should plan around sealed bottled water and safe food-handling habits.
Use sealed bottled water
Choose factory-sealed bottles for drinking, brushing teeth and taking medication. Check that the cap seal is intact before opening. Refill bottles only from a source the hotel identifies as potable.
Availability can vary during shortages or transport disruptions, so keep a small reserve in your room rather than waiting until the last bottle is finished.
Be careful with ice
Ice served in established resorts and restaurants is generally produced for guests, but standards and supply conditions can vary. Travellers with a sensitive stomach should ask whether ice was made with treated water and avoid ice from uncertain sources.
Hot drinks and boiled water
Tea and coffee prepared with water brought to a full boil are usually lower risk. However, water that is only warmed is not the same as properly boiled water.
Food choices that reduce risk
- Choose food that is freshly cooked and served hot.
- Avoid dishes left at room temperature for long periods.
- Wash or peel fruit yourself when possible.
- Be cautious with raw salads if the washing water is uncertain.
- Use clean utensils and wash or sanitize your hands before eating.
What to pack
A basic stomach-health kit can include oral rehydration salts, hand sanitizer, disinfecting wipes and medication recommended by your doctor or pharmacist. Do not start antibiotics or strong anti-diarrheal medication without appropriate medical advice.
Signs that require medical attention
Seek medical help if symptoms are severe, persistent or accompanied by high fever, blood, repeated vomiting, confusion, fainting or signs of dehydration. Children, older adults and travellers with chronic illness can deteriorate more quickly.
Keep your travel insurance information available and know how to contact the resort clinic or local medical assistance.
Prepare for temporary shortages
Water supply problems can affect a hotel, neighbourhood or transport route. Keep a reasonable reserve of safe drinking water, but avoid excessive stockpiling that prevents other guests from obtaining essential supplies.
For related preparation, read our guides to Cuba hotel shortages, food allergies and special diets at Cuba resorts and the 72-hour Cuba travel backup plan.
Simple water-safety checklist
- Drink sealed bottled or confirmed potable water
- Use safe water for brushing teeth and medication
- Ask about ice when uncertain
- Choose freshly cooked hot food
- Carry oral rehydration supplies
- Seek care for severe or persistent symptoms
Most water-related problems are preventable when travellers use safe water consistently and respond early to dehydration.
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