Is it OK to give tap water for baby formula?

Unless there is a known contamination of your local water source, you can use tap water to prepare concentrated liquid or powdered formula. In general, though, it is best to primarily use safe tap water that is fluoridated and occasionally use some non-fluoridated bottled water.

Is tap water safe for formula?

Yes, you can use clean tap water for powdered formula if your local water is safe, but for premature babies, infants under 3 months, or immunocompromised babies, boiling the water first (then cooling it) or using distilled/purified water is recommended to kill bacteria and reduce contaminants like lead or nitrates. Always use cold tap water and boil it for 1 minute (3 mins at high altitude), letting it cool for about 30 minutes before mixing, and consult your pediatrician if you have concerns about your water quality. 

What happens if you don't use distilled water for baby formula?

There is absolutely nothing wrong with using distilled water with powdered formula. The formula provides the exact minerals and nutrients that your baby needs. Nothing wrong with using regular filtered water also. There are multiple medical websites that will echo this (eg, Mayo Clinic).

What water should you not use for baby formula?

Do NOT use well water. Use distilled or purified water in place of well water. You may use city water or regular bottled drinking water to make formula if you boil it first as outlined below.

Why is bottled water not recommended for formula?

Bottled water is not recommended for making up infant formula feeds for your baby. This is because it's not usually sterile and may contain too much salt (sodium) or sulphate.

Water for Baby Formula - What’s Safe and What to Avoid

What is the best water to use in formula?

The best water for baby formula is typically safe tap water (boiled for newborns/preemies) or bottled distilled/purified water, with pediatrician guidance important if you have concerns about your local water quality. Filtered tap water using a quality filter (like reverse osmosis) also works well, but avoid boiling water with high levels of lead or nitrates as it concentrates them. Always consult your doctor for personalized advice, especially for premature or immunocompromised infants.
 

What age can babies drink tap water?

Water. Once your baby has started to eat solid foods (from around 6 months) you can offer them sips of water from a cup or beaker with meals. Drinking water for babies over 6 months does not need to be boiled first. Fully breastfed babies do not need any water until they've started eating solid foods.

What kind of water is best to make baby formula?

The best water for baby formula is typically safe tap water (boiled for newborns/preemies) or bottled distilled/purified water, with pediatrician guidance important if you have concerns about your local water quality. Filtered tap water using a quality filter (like reverse osmosis) also works well, but avoid boiling water with high levels of lead or nitrates as it concentrates them. Always consult your doctor for personalized advice, especially for premature or immunocompromised infants.
 

When can I start using tap water for baby bottles?

6 – 12 months old

Offer small sips of boiled and cooled tap water in a straw or open cup. Cups support motor skill development and healthy drinking habits. Most hydration should still come from breastmilk, formula, and food.

What type of water is safest for newborns?

For infants younger than 2 months of age, those who were born prematurely, and those who have a weakened immune system, boiled water should be used to kill any microbes. The American Academy of Pediatrics advises you to use water from a safe source or boil the water every time you are preparing your baby's formula.

Which is safer, distilled or purified water?

Purified and distilled water are both beneficial for you to drink, and are essentially the same. The main difference is that purified water doesn't remove all the healthy minerals found in water, which is why most people will choose to drink purified water over distilled water.

At what age can you stop using distilled water for baby formula?

You can often stop using distilled water and switch to safe tap water for formula once your baby is around 2 to 6 months old, especially if they are not premature and your local tap water is safe to drink, as the formula provides necessary minerals and after a few months, the risk of fluorosis lessens, though many parents continue with purified water or boiled tap water for peace of mind until 6 months or longer, checking with their pediatrician for guidance. 

Can newborns have faucet water?

No, tap water isn't ideal for newborns; it can contain contaminants like lead, nitrates, and chlorine byproducts, plus added fluoride, which are more harmful to developing infants, so it's best to use purified or bottled water for formula, or boil tap water if necessary, especially for the first 6 months. For babies under 6 months, breast milk or formula is sufficient; after 6 months, small sips of boiled tap water are okay, but always check local water quality and consider a filter.
 

Can you make formula with cold tap water?

Use freshly boiled drinking water from the tap to make up a feed. Do not use artificially softened water or water that has been boiled before. Leave the water to cool in the kettle for no more than 30 minutes. Then it will stay at a temperature of at least 70C.

What water is not safe for baby formula?

The American Dental Association recommends that water containing high levels of fluoride should not be used for making baby formula. This is because increased levels of fluoride in water can put your tiny human at risk for developing enamel fluorosis, potentially affecting developing teeth.

What happens if you don't boil water for formula?

If you don't boil water for formula, you risk exposing your baby to harmful bacteria like Cronobacter or Salmonella, which can live in powdered formula and water, potentially causing serious illness, especially in infants under 2 months, premature babies, or those with weakened immune systems. Boiling water (then cooling it to at least 70°C/158°F) kills these germs, but using unboiled water leaves your baby vulnerable to infection because their immune system is still developing. 

Can infants drink tap water with formula?

If you don't have bottled water, you can boil or disinfect tap water to make it safe to mix with powdered infant formula.

Why wait 30 minutes before making formula?

You wait about 30 minutes after boiling water for formula to cool it down to roughly 158°F (70°C) to kill harmful bacteria in the powder without scalding yourself, damaging nutrients, or causing clumps, ensuring safety for a baby's developing immune system. The water needs to remain hot enough to sterilize the formula, but not so hot that it burns the baby or ruins the formula's components, making that 30-minute window key for the ideal temperature.
 

What if baby drinks tap water?

Town tap water has fluoride in it, which is important for your baby's teeth. It is recommended that: Town tap water is boiled and cooled until your baby is 12 months old. Home filtered tap water is always boiled and cooled before drinking.

When can you stop sterilizing water for formula?

Note: If you do not have a safe water source, use ready-to-feed liquid formula. Sterilize all water used for formula for babies of any age. There is no research that says when to safely stop sterilizing. That means it is safest to sterilize water and bottle-feeding supplies as long as your baby is using formula.

What bottled water is best for baby formula?

For baby formula, the best bottled waters are distilled or purified (reverse osmosis, deionized) because they have minimal minerals and fluoride, preventing excess intake, with store brands being cost-effective; always check labels for added fluoride or electrolytes, as regular bottled water should still be boiled like tap water, while distilled/purified can often be used without boiling (but check with your pediatrician for vulnerable infants).
 

Does it matter what kind of water you use for baby formula?

You can use clean tap water or bottled water for concentrated liquid or powdered formula. If you use well water, have the water tested for chemicals, germs, or minerals that may be harmful. Your local health department may provide a testing service.

When can I start giving my baby tap water?

Babies under six months should only drink tap water that has been boiled and cooled down. Water straight from the tap is not sterile so is not suitable for younger babies. Once your baby is six months old, you can offer them water straight from the tap in a beaker or cup.

What happens if you accidentally give a 2 month old water?

Water poisoning or water intoxication, also called hyponatremia, is a condition in which the sodium level in the blood becomes abnormally low. Drinking too much water can cause this condition, which can lead to seizures. A baby who is given water under the age of 6 months may be at risk for this condition.

When can I stop using distilled water for formula?

You can typically stop using distilled water for formula once your baby is over 6 months old, or if your local tap water is confirmed safe to drink, but many parents continue for convenience or peace of mind, especially for premature babies or those with weak immune systems, using boiled/cooled tap water or purified bottled water as a safe alternative to ensure sterility. The key is avoiding contaminants, especially for babies under 2 months.