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Article: Is mineral water safe for babies? Differences between soft and hard water and how to choose

alkaline water

Is mineral water safe for babies? Differences between soft and hard water and how to choose

A baby playing with running water from a faucet outdoors, expressing curiosity and everyday water use.

Is it okay to use mineral water for babies?

Many people may feel anxious about whether it is safe to use mineral water for preparing baby formula or for hydration.

Especially abroad, where there are many types of water, you might be unsure which one to choose.

When choosing water for babies, it is important to prioritize gentleness and safety.


A baby drinking from a training cup, showing the transition to independent hydration with soft water.

Types of Mineral Water

Mineral water is broadly divided into two types based on its mineral content.

・Soft water: Low in minerals, with a smooth taste
・Hard water: High in minerals, with a substantial taste

Japanese water is mainly soft water and is known as easy-to-drink water for daily consumption.


A baby drinking from a cup outdoors in a park, representing safe soft water for everyday use.

Considerations for Water Used for Babies

Since a baby's body functions are still developing, it is believed that careful consideration of the components in water is necessary.

Therefore, soft water, which is low in minerals, is generally considered easier to use.

Soft water has the following characteristics:

・Less likely to affect formula ingredients
・Less likely to alter taste
・Easy to drink

These are its main features.


A pregnant woman drinking water, representing safe hydration choices for mothers and babies.

Is Hard Water a Concern?

Hard water contains a high amount of calcium and magnesium, so while it has a substantial taste,

・Its taste may change
・It may feel harder to drink

These differences can be observed.

Especially when using it for babies, it is important to check the type of water before choosing.


A baby drinking from a bottle in a close-up view, emphasizing gentle feeding and safe soft water.

Choosing Water Overseas (Thailand)

In Thailand, various types of mineral water are sold, and many hard waters are also widely available.

Therefore, instead of choosing with the same感覚 as in Japan, it is important to check:

・Hardness (mineral content)
・Drinkability
・Quality control

These aspects are crucial.


Features of Onsensui 99

Among these conditions, ultra-soft water is chosen by those seeking a gentle drinking experience.

Onsensui 99 is natural water sourced from deep underground in Tarumizu Onsen, Kagoshima Prefecture, and is ultra-soft water with a very low hardness value of 1.7.

It also has an alkaline pH of 9.9 and is characterized by its mild and easy-to-drink taste.

It is chosen by many people as water that is easy to use not only for daily hydration but also for preparing formula.

※Please use it according to your household's judgment for specific uses.


Summary

When using mineral water for babies, it is important to choose it after understanding the type and characteristics of the water.

Soft water, in particular, is chosen by many people for its gentle taste and ease of use.

Choosing safe water for daily life may lead to more comfortable parenting.


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