MAM Self-Sterilising Bottles vs Steriliser: Which Is Actually Faster?
MAM bottles are genuinely popular with UK parents – the wide neck, softer teat, and self-sterilising design are hard to argue with. But the self-sterilising function raises questions: does it actually work? Is it fast enough? And when does it make sense to use a separate steriliser instead?
Here's a clear comparison.
How MAM self-sterilising bottles work
MAM's self-sterilising bottles use the microwave. You disassemble the bottle, place the components in the base of the bottle (which acts as a sterilising container), add a small amount of water (around 20ml), snap the lid on, and microwave for 3 minutes on full power.
The heat generates steam, which sterilises the components. After cooling for at least 10 minutes – the bottle and base get very hot – you reassemble and the bottle is ready to use.
No additional steriliser required. The bottle is its own sterilising unit.
How to sterilise MAM bottles step by step
- Wash all components thoroughly in hot soapy water or the dishwasher first
- Place teat, ring, and lid inside the base of the bottle
- Add 20ml of cold water to the base
- Place the bottle upside down in the base, then place the base on a microwave-safe surface
- Microwave on full power for 3 minutes
- Leave to cool for at least 10 minutes – the base will be very hot
- Reassemble or leave sealed until needed – sterile for up to 24 hours if undisturbed
Note: microwave wattage affects timing. MAM's guidance assumes a standard 750-900W microwave. If yours is higher or lower, adjust accordingly – check the packaging.
Self-sterilising vs a dedicated electric steriliser
Speed
MAM self-sterilising: approximately 3 minutes in the microwave plus 10 minutes cooling – so around 13 minutes total before the bottle is usable. Not accounting for the fact you need to be present the whole time.
Electric steam steriliser: 8-12 minutes, mostly unattended. Many models maintain sterility for 24 hours with the lid on, so you can batch-sterilise ahead.
On raw clock time, an electric steriliser is roughly comparable. The difference is hands-off time – the electric unit runs without you watching it.
Capacity
MAM self-sterilising: one bottle at a time (you can do two if you have two MAM bases, but it's not practical at scale).
Electric steriliser: 6-8 bottles per cycle. If you're running 6+ bottles a day, the single-bottle MAM method becomes a significant bottleneck.
Bottle compatibility
The MAM method only works with MAM bottles – the base functions as the steriliser unit, so other brands can't use it. An electric steriliser handles any bottle brand.
When the MAM self-sterilising method makes sense
- When you only need to sterilise one or two MAM bottles at a time
- When you're travelling and don't have access to a separate steriliser
- As a backup when your main steriliser is full or unavailable
- When counter space is at a premium and you don't want another appliance
The self-sterilising function is genuinely clever and works well for its intended purpose – it's just not designed to be your primary sterilisation method when you're running many bottles per day.
What about the MAM electric steriliser?
MAM makes a standalone electric steriliser (and a combined steriliser and bottle warmer) designed specifically for MAM bottles. It works like any other electric steam steriliser – faster than the microwave method, handles multiple bottles, and maintains sterility with the lid on.
If you're committed to the MAM range long-term, the MAM steriliser is a logical pairing. If you're mixing brands or want the flexibility to sterilise other equipment (breast pump parts, dummies, other bottle brands), a brand-agnostic steriliser will serve you better.
If you want a steriliser that works for MAM bottles alongside any other brand – and handles washing and drying too – the Bebello 4-in-1 is compatible with the full range of bottle shapes including MAM's wide neck.
Frequently asked questions
Can I use a standard electric steriliser for MAM bottles?
Yes. MAM bottles are compatible with standard electric steam sterilisers. The self-sterilising base is an alternative method, not the only option.
How long do MAM bottles stay sterile after self-sterilising?
Up to 24 hours if the bottle remains assembled with the base lid in place and undisturbed.
Can I sterilise MAM bottles in a dishwasher?
A dishwasher cleans MAM bottles but doesn't sterilise them. You still need to sterilise after washing.
Do I need to descale the MAM bottle base?
Yes – scale deposits from hard water will build up in the base over time. Soak in a solution of water and white vinegar periodically to remove scale.