Türkiye: Water
Safe water matters especially with lowered immunity. This chapter explains how to use drinking water safely in Türkiye.

01Short answer
02Simple explanation
Know your source: tap, bottle, well.
If in doubt, boil for 1 minute.
Ice and water for teeth must be safe too.
03Scientific explanation
Boiling: according to the CDC, 1 minute at a rolling boil (3 minutes at high altitude) kills disease-causing germs.
General risk: according to the WHO, contaminated water is a major source of diarrhoea and other infections.
04What happens in the body?
Which water?
Sealed bottled water or freshly boiled water. With large dispenser bottles (damacana), keep the tap and cap clean and do not keep an opened bottle for long.

When to boil
When your team advises it, when a local boil-water notice applies, or when you are unsure of the source: 1 minute at a rolling boil, cool, store covered, use within 24 hours.

Filters and coolers
Home filters improve taste, but not all remove germs; change cartridges on time. Keep water-cooler taps clean.
05Safe water in four steps
From source to glass.







06Key points at a glance
| Topic | In brief |
|---|---|
Which water? | Sealed bottled water or freshly boiled water. With large dispenser bottles (damacana), keep the tap and cap clean and do not keep an opened bottle for long. |
When to boil | When your team advises it, when a local boil-water notice applies, or when you are unsure of the source: 1 minute at a rolling boil, cool, store covered, use within 24 hours. |
Filters and coolers | Home filters improve taste, but not all remove germs; change cartridges on time. Keep water-cooler taps clean. |
07Key terms
- Rolling boil
- A boil with continuous large bubbles.
- Sealed bottle
- An unopened bottle.
- Water filter
- A household water-cleaning device.
- Neutropenia
- Low neutrophils.
08Key points
- Know your source.
- If in doubt, boil.
- Ice must be safe too.
- Filters do not remove everything.
- Ask your team about tap water.
09Frequently asked questions
Is mineral water okay?
Sealed mineral water is usually fine; ask your doctor about salt and minerals.
Isn’t spring water clean?
Even clear water can carry germs.
Can I shower?
Yes; do not swallow the water. With a line, ask your team how to protect it.
10Questions for your doctor
Take these questions to your appointment. The ones you save are collected on the “My questions” page and stay on this device only.
Is mineral water okay?
Isn’t spring water clean?
Can I shower?
12Sources
- World Health Organization (WHO). Drinking-water — fact sheet
- Centers for Disease Control and Prevention (CDC). How to Make Water Safe in an Emergency
- National Cancer Institute (NCI). Infection and Neutropenia during Cancer Treatment
- GOV.UK (FCDO). Turkey travel advice: health
- GOV.UK. Medicines and Healthcare products Regulatory Agency
- GOV.UK. Cancer Drugs Fund
- NHS Blood and Transplant. Give blood
- NHS. Blood transfusion
- Anthony Nolan. Official website
- World Marrow Donor Association (WMDA). Official website
Which water?