skip to main content
The Best Bottle Sterilizers for Quick, Easy, Germ-Free Cleanups
The Best Bottle Sterilizers for Quick, Easy, Germ-Free Cleanups

Newborns don’t come with immune systems that are fully up and running yet. So when it comes to feeding gear—like bottles, pacifiers, pump parts and even some toys—keeping things as clean as possible can give you some peace of mind. That’s where a bottle sterilizer comes in.

Sterilizers use steam (or UV light) to kill more germs than washing alone, and many dry the items too—no towel-drying needed. They're especially helpful during the first few months, when your baby’s still building up immunity. Bottle feeding also means lots of prepping and cleaning, so anything that makes that routine easier is worth considering.

After testing several sterilizers (and drying a lot of bottles), we found the Baby Brezza One Step Sterilizer Dryer Advanced to be the best overall pick. It’s easy to use, has a large capacity, and dries everything quickly—no extra countertop clutter. Plus, it saves time, which is a win when you’re washing bottles on repeat.

How We Judged the Best Bottle Sterilizers

Capacity
To be the most efficient, you want a sterilizer that can fit quite a few bottles at a time. We focused on picks that can accommodate multiple bottles and their parts.
Ease of Use
If you’re going to be sterilizing your baby’s bottles frequently, you’ll want a sterilizer that is easy (and straightforward) to both use and maintain. 
Cycle Length
Depending on how often you’re sterilizing bottles (and the capacity of the machine) you’ll want to pay attention to how long the sterilization (and drying, if it has that feature) cycle is, especially if you’re sterilizing multiple batches.
Drying Capability
Not all sterilizers actually dry their contents—and this is something that can make life easier.

Best Bottle Sterilizer Overall

Baby Brezza One Step Baby Bottle Sterilizer Dryer Advanced - White.

Baby Brezza One Step Baby Bottle Sterilizer Dryer Advanced - White

From $139.99
Buy
Buy

Pros

  • High capacity can hold up to eight bottles
  • HEPA-filter drying filter = 95% germ-free air

Cons

  • Residue build-up is hard to clean
  • Long cycle length
  • Some say it doesn’t dry thoroughly

If you’re looking for a sterilizer that’s quick, easy to use and dries everything for you, the Baby Brezza One Step is our top pick. This electric sterilizer packs a two-in-one punch: it uses natural steam to sterilize bottles, pump parts and more, and features a drying function that’s 33% faster so your gear comes out clean and dry with no leftover moisture (which can encourage bacteria or mold growth). One Babylist parent raved in their review, “This machine is easy to use and so convenient. Saves a lot of time!” The Brezza One Step Advanced holds up to eight bottles at a time and two complete pump part sets and has an easy-to-use LCD control panel with four different functions.  

The two biggest gripes parents mention in their reviews have to do with occasionally needing to dry leftover water off of their bottles and pump parts. Quite a few parents mention that this machine requires a bit of maintenance in the form of descaling—one Babylist parent saying it felt like it constantly needed it—in order to prevent hard to clean build-up. 

Best Bottle Washer + Sterilizer Combo

Momcozy KleanPal Pro Baby Bottle Washer and Sterilizer - White.

Momcozy KleanPal Pro Baby Bottle Washer and Sterilizer - White

From $299.99
Buy
Buy

Pros

  • Washes, sterilizes and dries
  • Quick Mode option

Cons

  • Only fits up to four bottles

If you don't have much counter space, purchasing a sterilizer and a bottle washer may not make sense for your family. The KleanPal is a great all-in-one solution for parents who want (or need) sterilizing in their regular bottle cleaning routine. “The best baby product I registered for was my Momcozy KleanPal Pro Baby Bottle Washer and Sterilizer. It has freed up so much time for me to be able to spend quality time with my baby,” one Babylist parent shared in our most-loved products survey.

It has four different washing modes—with one as fast as 19 minutes—and fits all kinds of bottles and breast pump parts. It sterilizes with steam and fully dries everything after, allowing you to store parts germ-free for up to 72 hours. And if you decide you don’t need to keep sterilizing things as baby grows, you can just use it for washing and drying (meaning you’ll definitely get your money’s worth!).

The capacity is a bit smaller than the other sterilizers on this list, which means you’d have to work in batches if you have a lot of bottles to wash. But the Quick Wash Mode (a faster cycle for small batches) is an easy solve for this. It also needs frequent descaling to keep it working well.

Best Budget-Friendly Bottle Sterilizer

Dr. Brown's All-In-One Bottle Sterilizer and Dryer - White.

Dr. Brown's All-In-One Bottle Sterilizer and Dryer - White

From $74.99
Buy
Buy

Pros

  • Simple design, easy to use

Cons

  • Noisy

If you know you're only going to be sterilizing for a short amount of time, you might not want to spend that much, so an affordable sterilizer may make more sense. Dr. Brown’s All-In-One is a sterilizer and dryer that allows you to sterilize, dry and store everything once finished—keeping bottles clean for up to 24 hours as long as you don’t open the lid. “Air drying takes FOREVER and I used it to dry not just my bottles, but my pump parts, pacifiers, and now baby spoons. My number 1 recommended item for baby life,” one Babylist parent raved in their review.

It fits up to six bottles (and is particularly great if you’re using Dr. Brown’s bottles). It also comes in handy for smaller parts, as one parent pointed out in their review, “Before receiving this item off my registry I thought it might be a nice to have. Nope, I’d consider this a necessary item! I’m breastfeeding my baby and use this daily for bottles, pump parts, pacifiers, Haakaa, etc! It’s great.”

One thing parents wish was different is that it’s a bit noisy, one sharing: “My only dislike is the loud beeps it makes when you turn it on, run it and when it finishes. Aside from that, we’ve used this sterilizer every day since our baby was born.” But most agree the time-saving convenience makes it worth it.

Best Microwave Bottle Sterilizer

Philips Avent Microwave Steam Sterilizer.

Philips Avent Microwave Steam Sterilizer

From $20.99
Buy
Buy

Pros

  • Sterilizes in just two minutes
  • Affordable
  • Easy to clean

Cons

  • Requires a microwave
  • Needs to air dry after sterilizing

At a fraction of the cost of other sterilizers, this microwave option is roomy, compact and easy to use. It fits four 9-ounce bottles and is compatible with both standard and wide-neck designs. Everything inside remains sterile for up to 24 hours if you keep the stay-cool latches closed. Its simple design is user-friendly. You’ll need something to measure the exact amount of water—seven ounces—each time you use it. It also doesn’t dry after sterilizing, so you’ll want to make sure you have a drying rack to set everything out to dry afterward. 

While it’s touted as travel-friendly, it won’t fit most hotel microwaves (but that’s where sterilizer bags come in handy; see below for our top pick). It also doesn’t fit taller bottles, like Dr. Brown’s, and some parents mention they wish it was a bit bigger.

Best for On-the-Go Bottle Sterilizing

Munchkin Microwave Bottle Steam Sterilizer Bags (6-Pack).

Munchkin Microwave Bottle Steam Sterilizer Bags (6-Pack)

From $9.36
Buy
Buy

Pros

  • Affordable
  • Travel-friendly

Cons

  • Contents get very hot
  • Won’t work if yellow tab accidentally slides off

Sometimes you might need to sterilize things when you’re not home, whether it’s baby bottles on vacation or pump parts while you’re not home. And these microwavable sterilizer bags are by far the best option for on the go. One Babylist parent wrote in their review, “The convenience of this sterilizing bag makes the purchase 100% worth it. We also have a countertop bottle washer/sterilizer but in a quick pinch these bags work great and [are] also user friendly.”

Simply fill one of these XL bags with whatever items you need cleaned and a little bit of water, pop it in the microwave and you’re good to go. This set includes six bags and each bag can be used up to 30 times. There’s even a spot to mark each steam cycle so you can keep track of how many times you’ve used them. 

Just be sure to let the bag and contents cool before handling (both will be hot and there may be some steam when you open it). Some parents say the yellow closure tab comes off easily and prevents the bags from sealing properly.

Here are a few more sterilizing options worth a look—whether you want something compact, high-capacity or just super convenient.

Why Trust Babylist?

Babylist is the expert in baby; we know baby gear inside and out. We talk with parents face-to-face in our showroom and on our user panels and hear from thousands annually via our Best Baby Products online survey. We know what items millions of expecting parents are adding to their baby registries.

  • Firsthand professional and personal experience. As a mom of two and Babylist’s associate editor, I’ve spent a lot of time researching feeding gear, including bottle sterilizers. I’m also a certified lactation counselor and have written extensively about bottle feeding, and drew on those experiences to choose the top picks for this guide. Jen LaBracio, Babylist’s senior gear editor is the original author of this guide, has used a wide range of breast pumps over the years and I drew on her initial research and firsthand expertise.

  • Expert POV. For an expert POV, I spoke with Dr. Rebekah Diamond, a pediatric hospitalist based in New York City and author of Parent Like a Pediatrician: All the Facts, None of the Fear.

  • Bottle sterilizer data. At Babylist, we regularly analyze which baby products users are adding to their baby registries the most (and which ones they aren’t) and what the team of Merchandising experts—buyers who are responsible for ensuring the Babylist Shop is stocked with the best and newest gear—is excited about. Studying this kind of data helped us determine which products to test and the best bottle sterilizers to recommend to new and expecting parents.

  • Feedback and reviews. We reviewed comments and feedback from Babylist’s annual product survey of thousands of parents, read customer reviews from hundreds of Babylist users and spoke to parents on staff about their real-life product experiences.

Types of Bottle Sterilizers

There are three types of bottle sterilizers on the market: microwave, electric and a newer UV option. Microwave and electric models use steam to kill 99.9% of harmful bacteria in just a few minutes, while UV sterilizers use germ-zapping UV-C light instead of heat or water. Which is best? All three get the job done, so it really comes down to personal preference and how you plan to use it. Below is a chart comparing the options to help you decide.

Types of bottle sterilizers chart.

Do You Need a Bottle Sterilizer?

Dr. Rebekah Diamond, a board-certified pediatric hospitalist and assistant professor of pediatrics at Columbia University, says bottle sterilizers aren’t a must-have for every family. “After initially sterilizing bottles and pump parts, the most important part of cleaning is washing with soap and water—either after each use or anytime that bottles [or] pump parts aren't refrigerated.” 

For younger babies and those who are premature or immunocompromised, sterilization adds an extra layer of protection. But for older babies, hand washing bottles with soap and warm water or running them through the dishwasher is sufficient for keeping your bottles and other baby gear clean and free of breast milk or formula. “Some parents choose to sterilize daily, which is typically recommended for younger infants, and this can be done with any heat-based method. Meaning, a dishwasher is just as safe (and often just as convenient) as a special sterilizer,” says Dr. Diamond.

So while it’s not a necessity, a bottle sterilizer might be right for you if:

  • Your baby was born prematurely or is medically fragile

  • You think a sterilizer will give you peace of mind as a new parent

  • You’re pumping frequently and need a quick way to regularly sterilize your breast pump parts

And you can cover two bases if you choose a bottle washer that also has a sterilize setting, like the ones on this list!

Sources

Babylist content uses high-quality subject matter experts to provide accurate and reliable information to our users. Sources for this story include:

Stay Up-to-Date with Babylist