Are ARIABABIES products safe for newborns?

Yes. Materials are SGS-tested and free from formaldehyde, parabens, and other harmful substances. Products are also approved for sale in hospital pharmacies.

What is SGS certification?

SGS is a global testing and certification body. It verifies products meet safety and non-toxicity standards.

Are your products eco-friendly?

Yes. We use non-toxic materials and reduce single-use plastics where possible.

Which countries do you ship to?

Singapore, USA, UK, Canada, New Zealand, and the Netherlands.

Can I use the steriliser pouch with any microwave?

Yes. Follow the time and water fill line on the pouch. Do not exceed the maximum cycles marked on the pouch.

How many times can I reuse one steriliser pouch?

Up to the reuse count printed on the pouch.

Are breast pump wipes safe on nipples?

Yes when used as directed. Allow the area to air-dry before feeding.

Are reusable breast milk bags safe for freezing?

Yes. BPA-free and SGS-tested. Label date and volume. Thaw in the fridge or warm water.

How do the baby bottle cleanser tablets work?

Drop a tablet in warm water, soak bottles or parts, then rinse. No fragrance. No dye.

Are baby cotton wipes suitable for sensitive skin?

Yes. 100% cotton, no added chemicals. Use dry or add water.

What is your return policy?

Unused, unopened items within 14 days. Contact support with order number.

How can I contact you?

Email or IG DM during business hours (SGT).

When Can You Stop Sterilising Baby Bottles? CDC vs NHS

June 18, 2026

Ask a group of parents when they stopped sterilising their baby’s bottles and you may hear several completely different answers.

Some stopped at three months.

Others continued until six months.

Many were told to sterilise every bottle until their baby’s first birthday.

Then there are parents who say careful washing is enough once a baby starts crawling, eating from the floor and putting almost everything into their mouth.

The confusion becomes even greater when parents search for official guidance.

The NHS recommends sterilising bottles, teats and other feeding equipment until a baby is at least 12 months old.

The US Centers for Disease Control and Prevention, commonly known as the CDC, says daily sanitising may not be necessary for an older, healthy baby when feeding equipment is cleaned carefully after every use.

So which one is correct?

The answer is that the recommendations come from different public-health systems and use slightly different approaches to managing risk.

Neither organisation says bottles can simply be rinsed and reused.

Both agree on the most important rule:

Baby bottles and every part that touches milk must be cleaned thoroughly after each feed.

The disagreement is mainly about how long parents need to continue the additional sterilising or sanitising step after cleaning.

Cleaning and Sterilising Are Not the Same Thing

Before deciding when to stop sterilising, it is important to understand what each step does.

Cleaning

Cleaning removes:

Milk residue.
Formula residue.
Grease.
Visible dirt.
Many germs from the surface.

Cleaning normally involves disassembling the bottle and washing every component with suitable soap and clean water.

Sterilising or sanitising

Sterilising or sanitising is an additional step completed after cleaning.

It uses heat or an appropriate sterilising solution to reduce more germs remaining on the equipment.

In everyday parenting advice, the word sterilising is commonly used in the UK, Singapore and several other countries.

The CDC generally uses the word sanitising for home feeding equipment.

The terminology may differ, but the practical message is similar: it is an extra germ-reduction step that comes after proper washing.

Sterilising a bottle that still contains dried milk does not replace cleaning it.

Milk residue can protect germs and prevent heat or sterilising solution from reaching every surface effectively.

What Does the NHS Recommend?

The NHS advises parents to sterilise all feeding equipment until their baby is at least 12 months old.

This includes:

Bottles.
Teats.
Lids.
Retaining rings.
Breast pump components that come into contact with milk.
Other suitable feeding accessories.

The NHS says equipment should first be cleaned in hot, soapy water as soon as possible after a feed.

It should then be rinsed in clean, cold running water before sterilising.

The NHS recognises three main home sterilising methods:

Cold-water sterilising solution.
Steam sterilising using an electric or microwave system.
Boiling.

Under this approach, reaching six months or beginning solid foods does not automatically mean bottle sterilising should stop.

The recommendation remains to continue until at least the baby’s first birthday.

What Does the CDC Recommend?

The CDC separates cleaning from sanitising more clearly.

It advises parents to clean bottles after every feeding.

For additional germ removal, it recommends daily sanitising when a baby:

Is younger than two months.
Was born prematurely.
Has a weakened immune system because of illness or medical treatment.

For an older, healthy baby, the CDC says daily sanitising may not be necessary when feeding equipment is cleaned carefully after every use.

It also says a separate sanitising step may not be needed when feeding equipment is washed in a dishwasher using hot water and a heated drying or sanitising cycle.

This means that under the CDC approach, some families may stop daily sanitising after the newborn period, provided the baby is healthy and the cleaning routine remains thorough.

That is very different from the NHS recommendation to continue sterilising until at least 12 months.

CDC vs NHS at a Glance

Question	NHS guidance	CDC guidance
How often should bottles be cleaned?	After every use	After every feeding
How long should additional sterilising continue?	Until at least 12 months	Daily sanitising may not be necessary for older, healthy babies when bottles are cleaned carefully
Who particularly needs daily sanitising?	The 12-month recommendation applies generally	Babies under two months, premature babies and babies with weakened immune systems
Does ordinary dishwasher cleaning sterilise?	The NHS says dishwasher cleaning alone does not sterilise	A hot-water cycle with heated drying or a sanitising setting may remove the need for a separate sanitising step
How long are items boiled?	At least 10 minutes	Five minutes
Does sterilising replace washing?	No	No

The difference is real.

Parents should not combine random parts of each system—for example, following the shorter CDC sanitising period while also using an ordinary dishwasher cycle that does not meet the CDC’s heated sanitising conditions.

Choose a clear routine based on the guidance used in your country, your baby’s health and the equipment manufacturer’s instructions.

Why Do the Recommendations Differ?

Different recommendations do not necessarily mean one organisation understands baby hygiene and the other does not.

Public-health guidance is influenced by several factors.

1. Different definitions

The NHS uses “sterilising” as the standard household term.

The CDC describes “sanitising” as an additional step for further germ reduction.

The exact process and terminology are not always identical.

2. Different assumptions about household cleaning

Guidance may assume different access to:

Reliable hot water.
Dishwashers with heated drying cycles.
Safe drinking water.
Suitable drying areas.
Clean bottle brushes and washing basins.
Consistent hand hygiene.

3. Different approaches to precaution

The NHS takes a simple, highly cautious position: continue until at least 12 months.

The CDC uses a more individual risk-based approach based on the baby’s age and health.

4. Formula-feeding risks

Powdered infant formula is not sterile.

Incorrectly cleaned bottles or feeding equipment can add another possible source of contamination.

This makes careful hygiene especially important for newborns and medically vulnerable babies.

5. Simplicity of public messaging

“Sterilise until 12 months” is easy to remember.

A more conditional message—daily sanitising may not be necessary after two months for some healthy babies under certain cleaning conditions—requires parents to assess several factors correctly.

What About Singapore Guidance?

Singapore health guidance also takes bottle hygiene seriously.

HealthHub advises sterilising bottles before use as part of reducing the risk of gastroenteritis, while KK Women’s and Children’s Hospital states that bottle hygiene is particularly important for newborns and infants.

The available Singapore guidance does not always give one universal age at which every family should stop.

For parents in Singapore, continuing sterilisation throughout infancy remains a cautious and practical approach, particularly when using formula or caring for a younger baby.

Parents who wish to stop earlier should discuss their baby’s individual situation with a paediatrician or qualified healthcare professional rather than relying only on overseas social-media advice.

So, When Can You Actually Stop?

There is no single international answer.

When following NHS guidance

Continue sterilising bottles, teats and feeding equipment until your baby is at least 12 months old.

When following CDC guidance

Daily sanitising may no longer be necessary for an older, healthy baby when:

The baby is more than two months old.
The baby was not born prematurely.
The baby does not have a weakened immune system.
Every component is cleaned properly after every use.
The equipment is allowed to air-dry completely.
Clean equipment is stored in a protected area.
Your baby’s healthcare professional has not given stricter instructions.

Even under the CDC approach, sanitising can still be continued for additional germ reduction.

The CDC does not say parents must stop sanitising after two months. It says daily sanitising may no longer be necessary for some babies.

Who Should Continue Sterilising or Sanitising?

Continue the additional sterilising step when your baby:

Is under two months old.
Was born prematurely.
Has a weakened immune system.
Has a serious medical condition.
Is receiving chemotherapy or other immune-suppressing treatment.
Has recently been hospitalised.
Is under neonatal or specialist care.
Has been given specific feeding-hygiene instructions.
Is using equipment that cannot be cleaned reliably.
Lives in an environment where safe water or hygienic drying is difficult.

Parents should also consider continuing when the bottles are being used for powdered infant formula, particularly during the early months.

Individual medical advice should take priority over general online guidance.

Does Starting Solid Food Mean You Can Stop?

Not automatically.

Parents often question the logic of sterilising bottles after a baby starts:

Eating with their hands.
Dropping toys on the floor.
Crawling.
Chewing household objects.
Putting food-covered spoons into their mouth.

But bottle hygiene involves a specific risk.

Milk and formula are nutrient-rich liquids. Residue left inside bottle components can support bacterial growth, particularly around teats, valves, seals, threads and narrow openings.

A toy briefly touching the floor is not the same hygiene situation as warm milk residue remaining inside a poorly cleaned bottle for several hours.

Beginning solid food therefore does not automatically cancel the need for careful bottle hygiene.

Under NHS guidance, sterilisation continues until at least 12 months regardless of whether the baby has started solids.

Should Breast Milk Bottles and Formula Bottles Be Treated Differently?

Both should be cleaned carefully after every use.

Formula equipment requires particular attention because powdered formula is not sterile and can occasionally contain harmful germs.

Breast milk also leaves fat and protein residue inside bottles, valves and pump components.

That residue must still be removed properly.

Do not assume a bottle only needs rinsing because it contained breast milk rather than formula.

The cleaning requirements apply to:

Bottles.
Teats.
Caps.
Rings.
Valves.
Membranes.
Milk collection containers.
Compatible pump components.

How to Clean a Bottle Properly

1. Wash your hands

Wash your hands with soap and water before handling used or clean feeding equipment.

2. Take the bottle apart completely

Separate the bottle, teat, ring, lid, valve and any removable seals.

Milk can collect between components that appear clean from the outside.

3. Rinse away visible residue

Rinse the components under safe running water.

Do not place them directly inside a dirty household sink.

4. Wash in a dedicated basin

When washing by hand, use a clean basin reserved for infant-feeding equipment.

Wash each component with suitable soap and warm or hot water according to your local guidance.

5. Use a dedicated brush

Use a bottle brush and smaller teat brush reserved for feeding items.

Clean inside narrow openings, threads and valves.

6. Rinse thoroughly

Rinse every component in clean water.

7. Sterilise or sanitise when required

Use a method suitable for the bottle material and follow the manufacturer’s instructions.

8. Allow equipment to air-dry

Place the items in a clean area protected from dirt and splashes.

Do not dry the inside with a used kitchen towel, which may transfer germs.

9. Store only when completely dry

Moisture trapped inside assembled bottles may encourage germs or mould to grow.

Wash your hands before assembling and storing the dry components.

Common Sterilising Methods

Microwave or electric steam sterilising

Steam systems are convenient and widely used.

Follow the steriliser and bottle manufacturers’ instructions carefully.

Make sure:

Every component is microwave-safe when using a microwave.
The correct amount of water is added.
Parts are positioned as instructed.
Steam can reach all surfaces.
The equipment is allowed to cool before handling.

Boiling

Only boil items that the manufacturer confirms are safe to boil.

Boiling can cause some teats, valves and plastic components to wear more quickly.

Inspect them regularly for:

Cracks.
Splits.
Brittleness.
Warping.
Discolouration.
Changes in texture.

Official boiling times differ by country, so follow the guidance used in your location rather than guessing.

Cold-water sterilising solution

Use a product specifically intended for infant-feeding equipment.

Follow the dilution and soaking instructions precisely.

Do not make the solution stronger than directed.

Ensure all items remain fully submerged and that no air bubbles are trapped inside bottles or teats.

Dishwasher sanitising

Some dishwashers use hot water and a heated drying or sanitising cycle.

Check:

Whether your bottle components are dishwasher-safe.
Whether your dishwasher has a genuine sanitising setting.
Whether small parts require a secure dishwasher basket.
Whether the cycle meets the guidance you are following.

An ordinary cool or economy wash should not automatically be assumed to sanitise feeding equipment.

Sterilising Mistakes to Avoid

Sterilising without washing first

Heat does not reliably remove dried milk or formula residue.

Always clean before sterilising.

Leaving bottles assembled during cleaning

Milk can remain trapped between the teat, ring, valve and bottle neck.

Take everything apart.

Using a dirty household sponge

Kitchen sponges can carry large numbers of germs.

Use equipment reserved for baby-feeding items.

Drying with a used tea towel

A towel can transfer germs back onto freshly cleaned equipment.

Air-drying is preferable.

Touching the inside after sterilising

Avoid touching the inside of the bottle, teat or lid with your fingers.

Storing wet bottles in a sealed container

Trapped moisture can encourage microbial growth.

Allow every component to dry thoroughly.

Continuing to use cracked parts

Damaged teats, valves and bottles are harder to clean and may trap residue.

Replace worn components.

Assuming wipes sterilise equipment

Cleaning wipes may help remove visible milk residue temporarily, but they do not replace full washing and required sterilisation.

Using an ARIA Silicone Steriliser Bag

The ARIA Airtight Breast Pump Pouch or Steriliser Bag provides a portable option for steam-sterilising compatible pump and feeding components.

When using it:

Confirm that every item placed inside is microwave-safe.
Wash the items before sterilising.
Add the required amount of water.
Follow the microwave time stated in the product instructions.
Allow the pouch and contents to cool before opening.
Open carefully to avoid steam burns.
Do not sterilise the removable ABS sealing stick.
Inspect the silicone regularly for discolouration, stickiness, brittleness or other deterioration.
Replace the pouch when its material or seal becomes damaged.

The pouch should be treated as a sterilising tool, not as a substitute for washing.

It can be particularly useful:

At work.
During travel.
In smaller kitchens.
When parents do not want a bulky countertop steriliser.
For compatible pump parts and smaller feeding components.

Always follow both the pouch instructions and the equipment manufacturer’s heat limits.

Frequently Asked Questions

Can I stop sterilising bottles at three months?

Under NHS guidance, no. Sterilising should continue until at least 12 months.

Under CDC guidance, daily sanitising may not be necessary for an older, healthy baby when equipment is cleaned carefully after every use. Babies who were premature or have weakened immune systems require additional caution.

Can I stop sterilising at six months?

Starting solid foods or reaching six months does not change the NHS recommendation to continue until at least 12 months.

Parents following a different national guideline should apply that guidance consistently.

Do I need to sterilise bottles after every feed?

The NHS approach involves cleaning and sterilising feeding equipment before reuse.

The CDC requires cleaning after every feed but treats daily sanitising as particularly important for younger or higher-risk babies.

Is washing with dish soap enough?

Thorough washing is always necessary.

Whether it is enough without an additional sanitising step depends on your baby’s age and health, the cleaning method and the official guidance you are following.

Does a dishwasher sterilise bottles?

The NHS says dishwasher cleaning does not itself sterilise feeding equipment.

The CDC says a dishwasher using hot water and a heated drying or sanitising cycle can remove the need for a separate sanitising step.

Check the dishwasher settings and local guidance carefully.

Do I have to sterilise bottles for breast milk?

Breast milk bottles still need thorough cleaning. Whether additional sterilising is required depends on the guidance you follow and your baby’s individual risk factors.

Do bottles need to be completely dry?

Yes. Allow the parts to air-dry thoroughly before assembly or storage. Trapped moisture may encourage mould or germs.

Can I sterilise damaged bottles or teats?

Damaged feeding equipment should be replaced. Cracks, tears and worn areas can trap residue and become difficult to clean properly.

Is UV sterilisation enough?

UV systems vary considerably. Follow the equipment manufacturer’s directions and remember that UV treatment does not remove milk residue. Every item must still be cleaned first.

Should I sterilise toddler cups?

Clean toddler cups thoroughly after use, paying particular attention to straws, valves and seals. Whether continued sterilising is needed depends on the child’s age, health and local health guidance.

The Aria Babies Takeaway

The question is not simply whether sterilising is necessary or unnecessary.

The real question is:

Which guidance are you following, and does it fit your baby’s age and health?

The NHS recommends sterilising feeding equipment until at least 12 months.

The CDC says daily sanitising may not be necessary for an older, healthy baby when bottles are cleaned carefully after each use.

Singapore guidance also supports careful sterilisation during infancy but does not always provide one universal stopping age.

Whichever approach you choose:

Clean bottles after every feed.
Take every component apart.
Remove all milk residue.
Air-dry equipment completely.
Continue stricter hygiene for newborns, premature babies and babies with weakened immune systems.
Follow your healthcare professional’s advice when your baby has additional medical needs.
Follow the bottle and steriliser manufacturers’ instructions.

There is nothing wrong with continuing sterilisation longer for reassurance.

There is also no reason to shame a parent who follows recognised risk-based guidance for an older, healthy baby.

Clean every time. Sterilise according to your baby’s risk and your local guidance. Never let “they put everything in their mouth anyway” replace proper bottle hygiene.

Explore

Discover the ARIA Airtight Breast Pump Pouch or Steriliser Bag, a reusable silicone option for storing and steam-sterilising compatible pump and feeding components at home or while travelling.

Medical disclaimer: This article provides general educational information and does not replace advice from a paediatrician or other qualified healthcare professional. Parents of premature, immunocompromised or medically vulnerable babies should follow their medical team’s feeding-hygiene instructions.

Editorial note: Guidance reviewed in June 2026.

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