Skip to main content

Bottle Warmer vs a Jug of Warm Water

Bottle warmer vs warming a bottle in water compared

The short version

A jug of warm water heats a bottle perfectly well and costs nothing. A warmer is faster and more consistent, which matters at 3am when you are holding a screaming baby. Neither should ever be replaced by a microwave, which heats unevenly and creates hot spots that scald. Buy the warmer if night feeds are frequent; use warm water otherwise.

Best for night feeds

Philips Avent Premium Bottle Warmer

~$60

Check price on Amazon
Different job, often confused

Dr. Brown's Electric Steriliser

~$80

Check price on Amazon

At a glance

Philips Avent Premium Bottle WarmerDr. Brown's Electric Steriliser
SpeedA few minutesSlower
ConsistencyEvenDepends on water volume
Night convenienceHighLow
Counter spaceYesNone
SterilisesNoYes
CostModerateFree

Choose the Philips Avent Premium Bottle Warmer if…

Feeds happen several times a night for months and anything that shortens them has real value. A warmer holds a set temperature rather than guessing, which matters because repeatedly reheating or overheating milk degrades it.

Choose the Dr. Brown's Electric Steriliser if…

Sterilising and warming are different jobs and people often buy one expecting the other. Current guidance for most healthy full-term babies is that bottles need thorough cleaning, with sterilising advised in the early months and where guidance in your country recommends it. Follow your health visitor or paediatrician on this rather than the appliance marketing.

Common questions

Can I microwave a bottle?

No. Microwaves heat unevenly and produce hot spots that can scald a baby's mouth even when the bottle feels cool. This is one of the few genuinely unanimous pieces of infant feeding advice.

How do I test the temperature?

A few drops on the inside of your wrist should feel warm rather than hot. Always shake or swirl first, and test after that rather than before.

Does warming damage breast milk?

Overheating does. Warm gently to body temperature rather than hot, do not boil, and do not refreeze thawed milk. Your health visitor can advise on storage times for your situation.

Comparison based on published manufacturer specifications, published safety standards and the general consensus of owner reports. We have not tested these products side by side, and nothing here is medical or safety advice. Confirm current specifications and fit for your own vehicle or situation before buying. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you.

Planning childcare costs?

Parents Save $1,700/Year With This Childcare Tax Calculator

4 Excel spreadsheets with live formulas, 50-state daycare cost data, and negotiation scripts that save $200 to $2,000 on fees. Used by 2,000+ parents.

Get the Childcare Planner: $29

Instant download · Excel + Google Sheets · 30-day guarantee