Prague's public tap water is generally treated as drinking water, but preparing feeds for a baby involves more than whether adults drink from the tap. Building plumbing, stagnant water, the child's age and health, and the formula manufacturer's instructions all matter. Powdered infant formula is not sterile, so follow recognized public-health and clinical guidance for the child.

A parent prepares a baby bottle with formula on a wooden table in a cozy kitchen setting
A parent prepares a baby bottle with formula on a wooden table in a cozy kitchen setting. Use cold water from the specific drinking-water tap and follow current feeding guidance.

Check the specific tap

Use fresh cold water from a drinking-water tap, not hot water from the tap. If the accommodation has been empty, water looks or smells unusual, or the host identifies old internal plumbing or a non-potable source, ask for current local advice before use. Letting water run as recommended by the property may clear stagnant internal plumbing, but it does not correct a known contamination problem.

Follow formula instructions exactly

Wash hands, use clean preparation equipment, measure water and powder in the stated order and ratio, and follow the product's temperature and storage directions together with health-authority guidance. Recommendations can differ for young, premature, or medically vulnerable infants. Never add extra water to stretch formula, keep an unfinished feed for later against guidance, or use a hotel kettle without checking cleanliness and method.

A baby bottle placed on a high chair, captured in natural light, suggesting a nurturing environment
A baby bottle placed on a high chair, captured in natural light, suggesting a nurturing environment. A clean baby bottle and safe preparation method matter alongside water quality.

Bottled is not automatically safer

Mineral water can contain sodium or other minerals at levels not ideal for routine infant-formula preparation, and bottled water is not necessarily sterile. If choosing bottled water, use a product that current local health guidance considers appropriate and still follow preparation instructions. Do not judge by a mountain image or the words "natural" and "spring."

Know when to ask for help

For a baby with special medical needs, contact the child's clinician before travel. If authorities issue a local water notice, follow it. A pharmacist or pediatric service can help clarify Czech products and current advice. Seek medical care for signs of serious illness or dehydration rather than changing formula concentration or offering unadvised remedies.