Guides · Newborn kit · Feeding kit
Do I need a steriliser if I am exclusively breastfeeding?
What feeding equipment does NHS say to sterilise?
The NHS sterilising baby bottles page is about feeding equipment, including bottles and teats, until the baby is at least 12 months old. It is not a rule about breastfeeding itself. Best Start in Life says the same wash-and-sterilise steps apply to all feeding equipment you use, whether that is expressed breast milk or first infant formula.
NCT’s bottles-and-teats page repeats the 12-month line and adds pump parts that have touched the breast or milk: wash them, then sterilise them the same way you sterilise bottles. Tubing that has milk in it is hard to clean; NCT cites replacing it rather than trying to sterilise milk-filled tube.
If I never use bottles or a pump, do I need an appliance?
No. Exclusive breastfeeding at the breast, with no bottles, teats, pump flanges or milk storage bottles, leaves nothing on the NHS feeding-equipment list to put through steam, boiling or cold-water solution. There is then no reason to buy an electric steriliser. Timeline tools that drop one on every registry are selling a default, not quoting that split.
Swipe sideways for the full table
| How you are feeding | What NHS / NCT say to sterilise | Do you need a dedicated unit? |
|---|---|---|
| Only at the breast; no bottles, no pump | No feeding equipment on the list | No appliance. There is nothing to run through it |
| Expressing into a bottle or storage pot | Pump parts that touched breast or milk, plus any bottle or teat used | You need a method (boil, steam or cold water) until at least 12 months — not specifically a plug-in box |
| Mixed breast and formula, or any bottle feeds | Bottles, teats and other feeding equipment | Same three NHS methods; boiling or tablets work if the worktop is full |
| ‘Just in case’ bottles still in the cupboard, unused | Nothing, until they are used | Wait. Buy or borrow a method when the kit is actually used |
What if I am exclusively breastfeeding but I also express?
‘Exclusive’ in everyday talk sometimes still includes expressed milk in a bottle. The NHS equipment rule follows the kit, not the label. If milk has gone through a pump or into a bottle, those parts are feeding equipment until at least 12 months.
- Wash first NHS: clean bottles, teats and other feeding equipment in hot soapy water as soon as you can, then rinse in clean cold running water. NCT: take a pump kit apart and wash parts that touched the breast or milk.
- Pick any NHS method Boil for at least 10 minutes (items suitable to boil, fully under the water), steam (electric or microwave, openings facing down), or cold-water solution (at least 30 minutes, change every 24 hours).
- Handle with clean hands or tongs NHS: leave kit in the pan or unit until needed; if you take it out, put teats and lids on straight away.
- Skip the appliance if you prefer A pan on the hob or a lidded tub of cold-water solution meets the method list. An electric steriliser is optional kit, not the price of expressing.
Why do buying timelines still add a steriliser?
Retail timelines treat a steriliser as standard newborn kit because many households will use at least one bottle. NHS newborn ‘what to buy’ lists clothes, a sleep space, sheets or sleeping bags, and a car seat — they are not a mandate to buy a steam unit before you know how you will feed. If you later need a bottle, you can sterilise that day with a pan or tablets.
If a midwife or the clinical team has given you other instructions — for example after a stay on a neonatal unit — follow that team. This page only restates the public NHS equipment rule.
In shortIn short: exclusive breastfeeding with no bottles and no pump means no steriliser to buy. The NHS 12-month rule starts when feeding equipment touches milk. Expressing or mixed feeds need a sterilising method; they do not require an electric unit.
Questions parents ask
- I might try a bottle in a few weeks. Should I buy a steriliser now?
- Not on the NHS pages. When a bottle or pump appears, sterilise that equipment until at least 12 months. Boiling or a cold-water tub is enough to start; an electric unit is optional if you want one later.
- Do I sterilise muslin cloths I use while breastfeeding?
- The NHS sterilising pages are written for bottles, teats and other feeding equipment, including pump parts that touch milk. They do not turn every muslin into steriliser-load. Wash cloths as you would other baby laundry unless your clinical team has said otherwise.
- Does ‘exclusive breastfeeding’ include expressed milk in a bottle?
- For this kit question, follow the equipment. If milk goes through a pump or bottle, NHS Best Start in Life says the sterilising steps apply to that feeding equipment, whether the milk is expressed breast milk or formula.
- Is a dishwasher enough for pump parts?
- NHS: a dishwasher can clean feeding equipment but does not sterilise it. After a clean, still use boiling, steam or cold-water solution on the parts that need sterilising.
Sources
Official pages first. If this page and the official page disagree, the official page wins.
- NHS — Sterilising baby bottles — checked 10 September 2026
- NHS Best Start in Life — How to sterilise equipment — checked 10 September 2026
- NCT — Baby bottles and teats: choosing and sterilising — checked 10 September 2026
This is information, not a guarantee of any payment, and not medical, legal or product-safety advice for your home. Prices and rules change; figures carry the date they were checked. Recall status comes from official records only — a product we cannot find is not a safety all-clear. Tell us if we got a fact wrong.