Drinking water for babies - what you need to know

Even the smallest impurities in water can affect babies

Proper hydration is essential – especially for newborns. But many parents wonder: is tap water safe for my baby? In this blog article, you will find clear answers and practical tips on how to safely provide drinking water for newborns – and why filtered tap water can be a smart and safe solution.

Babies and tap water

A baby's immune system is far more sensitive than that of an adult, making them more vulnerable to contaminants. In most parts of Europe, tap water is well regulated. However, when preparing infant formula, there are several aspects to take into consideration. Even small amounts of heavy metals, PFAS (so-called forever chemicals) or bacteria can pose a risk to your little one.
Furthermore, babies' kidneys are not fully developed right after birth, and giving them water – in addition to breastfeeding or formula – can disrupt their delicate fluid and mineral balance.

When can babies drink tap water?

The general recommendation: babies under 6 months should not drink untreated tap water.
In the first months, breast milk or infant formula covers all of your baby's hydration needs. If you are preparing water for newborn formula, you should either:

• Boil tap water to reliably destroy any bacteria

• Use a high-quality water filter to remove harmful substances

• Or choose mineral water labelled “suitable for preparing infant formula”. Make sure it has low mineral levels, especially sodium and sulphate.

From around 6 months of age, when you introduce solid foods, you can start offering your baby small amounts of water. But even then, tap water should only be used under the best and most consistently monitored conditions. If tap water appears discoloured or has a brownish tint, it is better to avoid using it.

Can I use tap water for formula without boiling it?

The short answer: not necessarily.
Although tap water in the UK is strictly regulated, some risks remain:

• The water quality in your home depends on the plumbing. Old lead pipes or new copper ones can be problematic.

• Germs and biofilms can build up in taps or fittings that are not used regularly.

• Traces of heavy metals, PFAS or microplastics are not completely eliminated by standard disinfection.

So, if you intend to use tap water for your baby after 6 months – or if you are wondering, can I use tap water for formula? – we recommend being cautious. This also applies to preparing water for infant formula. Ask your local water supplier about drinking water quality , or consider having it tested by an independent laboratory.

What is the best water for babies?

The safest options are:

• Fresh tap water boiled for at least 3 minutes

• Mineral water labelled “suitable for preparing infant formula”

• Filtered tap water – using a high-quality water filter that effectively reduces contaminants

Filtered water is often the most practical and sustainable solution for families. It gives you access to clean, fresh drinking water at any time – without carrying heavy water bottles or worrying about what comes out of the tap.

Our tip: if the water has not been used recently, let it run for a few seconds until it becomes cold and fresh. Stagnant water in pipes may contain bacteria or particles released from taps and plumbing.

Water filters for babies? Why home filtration is worth it

A modern water filter can make a big difference in day-to-day life with a baby – and most importantly, it gives you peace of mind.
With high-quality filtration systems from Ecosoft, you can reliably reduce:

• PFAS and other industrial chemicals

• Bacteria

• Chlorine and heavy metals

• Limescale

• Unpleasant tastes and odours

At the same time, you will benefit from proper mineralisation. Ecosoft reverse osmosis filters reintroduce essential minerals into tap water – for consistently clean water with a fresh taste. It is ideal for preparing infant formula and, of course, excellent for you and your family too.

The best options for parents: baby water purifiers that fit your routine

For households with babies, we especially recommend:

• FILTRO Infinity – a compact and efficient system for filtering tap water.
  A compact and high-performance reverse osmosis purification system for clean and safe water.

• Ecosoft PURE Balance reverse osmosis filter  - Classic purification system
  Remineralised with magnesium and calcium for healthy water with an excellent taste. Ideal for babies.

• Ecosoft CROSS 90 Balance - Purification with remineralisation
  An advanced under-sink system with multi-stage filtration that removes contaminants and adds back essential minerals. Perfect for families who appreciate modern technology and convenience.

Would you like to find out more about our filters? Contact our team – we are happy to help!

Tap water for babies: Yes – but use it responsibly.

If you want to give your baby tap water, it is important to understand the risks and take proactive steps to minimise them. For example, babies should never drink chlorinated tap water that exceeds the TDI (tolerable daily intake).
With a reliable water filter from FILTRO, you can bring greater safety into your home. However, if local water quality is poor – or if your building has lead plumbing – it is better to use certified mineral water when preparing infant formula.