Bottle warmers
Grownsy Classic Bottle Warmer
Our take
Very consistent, but the recommended settings didn't warm milk enough and the higher settings overheated it in BabyGearLab's test, so check the temperature every time.
Water bathExtra features
Consider instead: First Years Gentle Warmth for a warmer that doesn't overheat.
Before you buy
Do you need it?Often skipped Many parents say they barely used one: a bowl of warm water works, and many babies take room-temperature milk.
Cost per monthAbout $4.92 a month over a typical 12 months of use. Our estimate; your use may be shorter or longer.
Cheaper optionThe First Years Gentle Warmth Digital Bottle Warmer: About $30, scored 81 (Good).
Secondhand?Fine secondhand. Fine secondhand.
TipTry the warm-water method for a couple of weeks before buying one.
What parents and testers say
Recurring praise
- Very consistent
- Unique features
Recurring complaints
- Recommended settings too cool
- High settings can overheat milk
- Pricey
Our summary of patterns across the reviews and threads linked below, not quotes.
Materials & safety check
1 of 2 checks clear, 1 to know about.
OverheatingHigher settings overheated milk in BabyGearLab's test
RecallsNone found in CPSC bottle warmer recalls since 2019
When to buy it
Registry
Nice to have; many families add it after birth
By 36 weeks
Set up and run one cycle before first use
After birth
Buy once you know how much you'll bottle-feed
Other bottle warmers we scored
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Reports from parents who've used a product for months are the hardest thing to find. Yours goes only to our team and helps keep this score honest. It isn't published.
Sources
- BabyGearLab: Best bottle warmers (lab tests, Feb 2025)babygearlab.com
- CPSC recall database: "bottle warmer" recalls since 2020saferproducts.gov