The 4 Best Bottle Warmers

Best Overall Bottle Warmer

Tommee Tippee 3-in-1 Advanced

Tommee Tippee 3-in-1 Advanced

Tommee Tippee Multiwarm Intuitive Bottle Warmer, Warms Baby Feeds to Body Temperature in Minutes, Automatic Timer, White

  • Warms feeds fast: Warms baby milk, food jars or pouches in as little as 4 minutes using natural steam. Option to heat from room temperature, cold or frozen by selecting the correct setting
  • Automatic timer: Automatically works out optimum warming time based on the settings you choose and has an auto shut-off setting for added safety
  • Gentle warming: Gradual, gentle warming helps to preserve the goodness and vital nutrients in your baby’s feed and gets it to a comfortable body temperature that feels natural to baby
  • Convenient: The Multiwarm warmer is spacious enough to fit most brands of bottles and food jars, yet still compact enough to sit neatly on your kitchen counter
  • Takes the chill off: Warms breast milk, formula and baby food to body temperature without overheating, so your baby has a comfortable and natural feeding experience

Auto Shut Off: Yes | Water Bath/Steam: Water bath


  • Fits various bottles/pouches
  • Safe
  • Simple operation


  • Average warming time
  • More difficult to clean

The Tommee Tippee 3-in-1 Advanced is an exceptional water bath warmer that we’ve had the pleasure of using. We’ve always preferred water baths over steam as we find them to be safer and more consistent. The user-friendly four-button interface takes into account various factors like bottle type, milk temperature, and volume. It’s intuitive and straightforward, making the warming process a breeze.

One of the standout features is its large inner chamber, which comfortably accommodates most wide-neck bottles. The included basket is a thoughtful addition, allowing for easy lifting of shorter containers without the risk of burned fingers. In our testing, the Tommee Tippee 3-in-1 Advanced earned the highest overall score, making it a top choice for us to use in our own homes.

However, it’s worth noting that the larger size of the 3-in-1 Advanced may not be suitable for those with limited kitchen space or those who wish to use it outside of the home. Additionally, the warm time of the Tommee Tippee may not be as quick as some other models on the market. Nevertheless, we gladly accept a slightly longer wait if it means achieving a consistently warm milk temperature.

To sum it up, we genuinely adore this Tommee Tippee product and wholeheartedly recommend it as your go-to warmer. Its exceptional performance, thoughtful design, and focus on safety make it a standout choice for any parent.

best overall bottle warmer

Innovative Bottle Warmer

Kiinde Kozii

Kiinde Kozii Baby Bottle Warmer

Kiinde Kozii

  • SAFE & EASY WARMING: The Kozii baby bottle warmer creates a flowing warm water bath (NOT steam) to quickly and gently thaw and warm breast milk according to CDC and USDA guidelines. Unlike other warmers, Kozii does not require that you measure or add water with each use. It uses an auto-shutoff feature, so when the time is up, the warmer shuts off and completely removes the heat source from the bottle.
  • A GREAT BABY SHOWER GIFT: Every new mom knows convenience is key when it comes to feeding a baby. Kozii is a great way to heat up expressed breast milk, baby formula, or baby food as gently and quickly as possible. It’s an excellent product to use alongside other accessories, including a breast pump, bottle steamer, and bottle set. Put one of these baby registry best sellers on your registry today!
  • UNIVERSAL WARMING CHAMBER: Kozii’s warming chamber is designed for bags, pouches, bottles, and jars alike and it’s great for first-time moms. It’s gentle enough to thaw frozen breast milk and powerful enough to heat up pureed baby food. It heats foods to the perfect temperature for Baby so you don’t have to worry about overheating. You’ll be able to use Kozii from birth through the toddler years.
  • PRESERVES NUTRIENTS IN BREAST MILK: Breast milk is full of the great stuff! That’s why Kozii uses gentle heat to preserve the unique set of nutrients found in breast milk. You won’t have to worry about the integrity of vitamins, minerals, amino acids, enzymes, and white blood cells naturally occurring in a mother’s milk.
  • WARMS MANY CONTAINERS & MATERIALS: Kozii can heat up virtually any reusable or disposable container including milk storage bags, milk pouches, baby bottles, food jars, or liner bottles. It can handle both frozen and thawed breast milk and is great for heating up baby formula. Bottle steamers can overheat easily and aren’t effective for all materials. That’s why Kozii uses gently flowing, warm water.


  • Holds most containers
  • Safe
  • Easy to clean


  • Slow heater
  • Slightly more expensive

The Kiinde Kozii is an exceptional warmer that truly stands out from the crowd. In our review, it earned the top rank and quickly became a favorite for us at home, on the go, and even at daycare. There are several remarkable qualities that make it a standout choice.

First and foremost, the user-friendly design of the Kozii sets it apart. It effortlessly accommodates all bottle shapes and materials, making it incredibly versatile. The inclusion of a quick-start guide ensures that even first-time users can easily navigate its functions. Additionally, its small footprint makes it convenient for use in any space. We also appreciate the auto shut-off feature, which adds an extra layer of safety and peace of mind. The retractable water reservoir is a thoughtful touch, eliminating the hassle of handling excess water.

One of the standout features of the Kozii is its SAFEHeat technology. This innovative approach uses a warm, circulating water bath to heat bottle contents, reducing the risk of nutrient damage. We found this to be an excellent feature, ensuring that our baby’s milk or formula retains its nutritional value.

It’s worth mentioning that the Kozii is not the fastest option available, as it doesn’t utilize steam heat technology. However, we believe that the wait is well worth it when considering the other beneficial features it offers. The ease of use, versatility, and outstanding safety performance make it a favorite among our testers.

In summary, the Kiinde Kozii is an innovative and impressive warmer that exceeded our expectations. Its user-friendly design, versatility, and commitment to safety make it a standout choice. Despite being slightly slower than some competitors, the overall performance and standout features make it a top pick in our book.

innovative bottle warmer

Best Bang for the Buck

Chicco NaturalFit

Chicco Digital Bottle Warmer

Chicco NaturalFit

Sub Title

  • 2-IN-1 Digital Bottle Warmer &Sterilizer allows you to both warm and sterilize bottles
  • STERILIZATION feature allows you to sterilize baby’s bottle in as little as 5 minutes
  • FLEXIBLE PROGRAMMING – The digital touchscreen features a backlit display and flexible programming options for a wider variety of materials (glass, plastic, & silicone)
  • BASKET INSERT INCLUDED – makes placing and removing milk bags and food jars quick and easy

Auto Shut Off: Yes | Water Bath/Steam: Water Bath


  • Inexpensive
  • Safe
  • Consistent temperature


  • Slow to heat
  • Harder to clean

The Chicco NaturalFit is a straightforward and affordable warmer that offers reliable performance. It provides a safe and convenient way to heat your baby’s bottle without unnecessary complexities. With a focus on simplicity, this product ensures ease of use without compromising on quality.

Operating as a water bath warmer, the Chicco NaturalFit offers a slow yet consistent warming process. Its main strengths lie in health, safety, and user-friendliness. The warmer is designed to accommodate various bottle dimensions and materials, making it versatile for different bottle types. Additionally, it boasts a compact size, making it convenient for travel and minimizing its footprint in your kitchen.

While it’s worth noting that the Chicco NaturalFit is not the quickest warmer on the market, the affordable price point and consistent warming temperature are its standout features. Though waiting for adequate warming may occasionally result in a fussy baby, we believe that the advantages of affordability and reliable performance outweigh this minor inconvenience. For most families, especially those on a budget, this wallet-friendly option is an excellent choice.

In summary, the Chicco NaturalFit is a simple and budget-friendly warmer that prioritizes safety, ease of use, and compatibility. While it may not be the fastest option available, its reliable warming capabilities, along with its affordable price, make it a compelling choice for families seeking a straightforward and efficient solution for heating their baby’s bottles.

bottle warmer - best bang for the buck

Best for Travel

Tommee Tippee Travel Warmer

Tommee Tippee Travel Warmer

Tommee Tippee Travel Warmer

  • Warm baby’s feed on the go: The travel warmer securely stores hot water and keeps it hot so it’s ready to warm baby bottles or food on the go
  • Closer to Nature compatible: The travel warmer is specially designed to hold Tommee Tippee’s Closer to Nature baby bottles and a wide range of branded baby food jars or pouches
  • Thermal insulation: The flask’s thermal insulation keeps water warm and doesn’t require an external heating source – perfect for days out
  • Travel friendly: The portable and convenient design fits perfectly in your bag so it’s ideal for travelling and features a leak-proof lid for added peace of mind
  • BPA-free: All the Tommee Tippee sterilizers, bottle warmers and feeding bottles are BPA-free for your total reassurance


  • Portable
  • Fits most bottles
  • Affordable


  • Slow heat time
  • Fewer safety features

The Tommee Tippee Travel Warmer is a highly innovative product specifically designed for families on the go. Its main feature is an insulated flask that stores warm water, coupled with an extra-large beaker serving as a warming chamber. This beaker is spacious enough to accommodate most bottles, pouches, or baby food containers. To prepare the warmer, simply boil water in advance, and all the components fit together seamlessly in a self-contained unit that conveniently fits in a diaper bag or stroller basket. By utilizing a hot water bath, the Travel Warmer effectively brings milk to a temperature suitable for babies without the need for an external warming source.

However, it’s important to note that the ultra-simplistic design of the Travel Warmer does come with some limitations. One notable drawback is the absence of safety features like an auto-shutoff or an end-of-cycle alarm. Additionally, the heating process is relatively slow and somewhat inconsistent due to the lack of water circulation. If you desire movement in the water for more uniform warming, you must manually swirl the beaker.

Despite these limitations, the Tommee Tippee Travel Warmer remains a compelling option if you’re seeking a convenient solution for warming your baby’s food while away from home. Its portability and ability to maintain warmth make it a viable contender for on-the-go families.

In summary, the Tommee Tippee Travel Warmer is an innovative and convenient product designed for mobile families. While it lacks certain safety features and may not heat bottles as quickly or consistently as other options, its portability and ability to provide warm meals or milk on the go make it a practical choice for busy parents.

bottle warmer - the simple setup of the tommee tippee travel warmer does not have as...

Why You Should Trust Us

Having researched more than 35 warmers over time, we’ve tested over 23 contenders side-by-side. Our comprehensive testing process includes measuring factors such as warming temperatures, warming times, ease of use, and cleaning ease. We conducted extensive and detailed tests over several months, evaluating the warmers in different settings, including our in-house testing facility, tester’s homes, and daycares. Our rigorous test process encompasses over 15 individual tests, focusing on temperature accuracy, changes over time, and monitoring temperature fluctuations to simulate real-life scenarios if bottles are left unattended. We believe these thorough heat monitoring tests are essential in finding a safe and user-friendly warmer, particularly when it comes to preserving the integrity of precious breastmilk.

At BabyCareAll, we are committed to providing our readers with the most scientifically-driven reviews of baby gear.

Our scores reflect the performance of each warmer and highlight the differences between them. We prioritize metrics such as health and safety, ease of use, warming efficiency, and ease of cleaning to identify the best warmers during our extensive testing. We understand that not all warmers are created equal, especially when it comes to ensuring the proper handling of breastmilk. Our goal is to provide parents with reliable information so they can make informed decisions about the baby products they choose.

At BabyCareAll, we are passionate about helping parents navigate the world of baby gear, providing them with trustworthy reviews and recommendations they can rely on.

The Dr. Brown's Deluxe has a removable water reservoir that can hold...
The Kiinde Kozii easily topped the rank with its user-friendly design.

Analysis and Test Results

While not essential, a bottle warmer can be a valuable addition to your baby gear collection. For parents with multiple babies or those exclusively bottle-feeding, a bottle warmer can offer a simple, convenient, and safe solution for heating your baby’s meals. It can be a real timesaver and help alleviate some of the stresses associated with feeding time. Consider it as an extra pair of hands, always ready to assist you in providing warm and comforting meals for your little one.

bottle warmer - while all bottle warmers can heat bottle contents, not all perform...


When it comes to preparing for a baby, expenses can quickly add up. Fortunately, if you find yourself in need of a bottle warmer, most options are reasonably priced compared to other baby gear items. Among the award-winning warmers we’ve reviewed, prices range from $35 for the Chicco Natural Fit to $70 for the Kiinde Kozii. The top-ranked warmer, the Tommee Tippee 3-in-1 Advanced, falls in the middle at $43.

If you’re unsure about the frequency of your usage or if you even need a bottle warmer, but still want to have one on hand just in case, the Chicco Natural Fit is your best choice at a wallet-friendly price of $35. It’s a reliable option that offers great value for your money. Not only did it earn a higher ranking, but it also boasts a faster heating time compared to other warmers.

Ultimately, you can’t go wrong with the Chicco Natural Fit. It provides excellent performance, a competitive ranking, and a more affordable price tag. So, if you’re looking for a reliable and cost-effective option, the Chicco Natural Fit is a solid investment that won’t disappoint.

bottle warmer - the tommee tippee pump and go bottle and pouch warmer is a water...

Health and Safety

When selecting a bottle warmer, prioritizing health and safety is crucial. It’s important to ensure that the warmer does not overheat or heat the contents of the bottle unevenly. Overheating can lead to hot spots or compromise the nutritional and immunological properties of breast milk. To maintain the integrity of breast milk, it’s recommended to avoid exceeding a temperature of 104°F/40°C, with the ideal temperature being at or below the body temperature of 98.6°F/37°C.

During our testing, we developed preferences for specific features, with a particular inclination towards warm water bath technology over steam heat. This preference stemmed from the fact that warm water bath technology offers a reduced risk of scalding injuries to both you and your baby. Bottles warmed with this method tend to be slightly cooler and more comfortable to handle. Additionally, there is a lower likelihood of overheating the contents of the bottle.

In our evaluations, both the Kiinde Kozii and the Tommee Tippee 3-in-1 Advanced achieved satisfactory health and safety scores. These products rank among the highest in our tests and both utilize a water bath warming method. By employing this technology, they provide a reliable and safe approach to warming bottles while maintaining the desired temperature for optimal health benefits.

When it comes to the health and safety of your baby, the Kiinde Kozii and Tommee Tippee 3-in-1 Advanced have proven to be excellent choices that offer peace of mind and reliable performance.

Overheating Breastmilk Results in Nutrient Loss

Maintaining the ideal drinking temperature for a baby’s bottle, which matches the body temperature of 98.6°F/37°C or below, is crucial. It is important to be attentive to the warming process, particularly when it comes to breastmilk. Breastmilk is a living substance that contains a wide range of valuable nutrients, including enzymes, probiotics, immune factors such as IgG and IgM antibodies, and immunoglobulin A, as well as complex growth factors and hormones.

These beneficial components of breastmilk play a vital role in supporting the baby’s growth, development, and immune system. When warming breastmilk, it is essential to handle it with care to preserve its nutritional integrity. Overheating breastmilk can lead to the degradation or loss of these valuable components.

By being mindful of the temperature during the warming process and ensuring that the bottle reaches the ideal drinking temperature of 98.6°F/37°C or less, you can help maintain the optimal nutritional value of breastmilk. This will ensure that your baby receives all the valuable nutrients and protective factors that breastmilk provides, promoting their overall health and well-being.

bottle warmer - overheating breastmilk can cause nutritional degradation. (x-axis in...
Overheating breastmilk can cause nutritional degradation. (X-axis in minutes, Y-axis in degrees Fahrenheit)

Credit: BabyGearLab

You are absolutely correct. The temperature at which breastmilk is heated plays a crucial role in preserving its nutritional and immunological benefits. Scientific studies have demonstrated that the degradation of these benefits becomes significant when temperatures exceed 104°F/40°C. Furthermore, both the temperature and duration of exposure to high temperatures are important factors to consider.

While minimal loss of nutritional value occurs until temperatures exceed 113°F/45°C, it’s important to note that the higher the temperature, the faster the degradation rate. For instance, a study revealed that after 10 minutes at 113°F/45°C, there was only around a 10% loss of key nutritional activated enzymes. However, if the temperature is raised even higher, such as to the temperature of hot tap water in many homes (which is too hot for breastmilk), just one minute at 131°F/55°C resulted in a loss of half the activated enzymes.

These findings highlight the significance of carefully monitoring the temperature at which breastmilk is heated. It is essential to avoid exposing breastmilk to excessive heat to preserve its nutritional and immunological properties. By adhering to the recommended temperature range and being mindful of the duration of heating, you can ensure that your baby receives the full benefits of breastmilk’s valuable components.

bottle warmer - bottle contents should ideally be around body temperature...

Basic Bottle Warming Test

Furthermore, we wanted to simulate real-life situations, so we also conducted tests where we left the bottle in the warmer for up to 12 minutes. This enabled us to observe how warm the milk became if the bottle was accidentally left in the warmer or if there was a delay in removing it. By doing so, we could assess the performance of the warmers in maintaining a safe temperature for an extended period.

bottle warmer - the chart above shows recorded temperatures every 30 seconds for a...
The chart above shows recorded temperatures every 30 seconds for a 12 minute period. Each warmer was tested using refrigerated milk and the manufacturer’s recommended settings.  

Credit: BabyGearLab Staff

Based on our testing, we found that the Kiinde Kozii, Tommee Tippee 3-in-1 Advanced, and Chicco NaturalFit performed well in terms of health and safety. These warmers maintained temperatures below 104 degrees for an adequate amount of time while still effectively warming the bottle for a baby’s needs. Among these options, the Kiinde Kozii stood out as the fastest in reaching proper warming temperatures without the risk of overheating. It also had the lowest temperature at shut-off, while the Tommee Tippee 3-in-1 Advanced was closest to body temperature at shut-off.

On the other hand, the Munchkin Speed received the lowest score for health and safety in our tests. This particular unit is a steam-based product that poses a burn risk if the steam comes into contact with the skin. Additionally, if the bottle is accidentally left in the warmer, the Munchkin Speed has a tendency to overheat the bottle after shut-off. While it does heat up quickly, reaching 97 degrees Fahrenheit in approximately 2 minutes, it can pose a danger if parents are momentarily distracted by other tasks such as changing a dirty diaper or attending to a crying infant. In our tests, we observed alarming temperatures of up to 137 degrees Fahrenheit in 5 minutes and 147 degrees Fahrenheit in 12 minutes.

Considering these findings, it is important to prioritize the health and safety aspects of a bottle warmer to prevent the risk of burns or overheating. The Kiinde Kozii, Tommee Tippee 3-in-1 Advanced, and Chicco NaturalFit demonstrate better performance in maintaining safe temperatures for your baby’s bottle, ensuring peace of mind for parents during the warming process.

Overheating is Possible at Maximum Settings

In a second test, we set them to the maximum heating setting (not the manufacturer’s recommended setting) to see if the warmer’s misuse could result in overheating breastmilk.

bottle warmer - we conducted a "worst-case scenario" test in which we set each...
We conducted a “worst-case scenario” test in which we set each bottle warmer at its maximum heat setting to see if they would overheat the milk.

Credit: BabyGearLab Staff

The Chicco NaturalFit once again impressed us with its consistent and safe heating performance. It consistently reached temperatures that were neither scalding nor detrimental to breastmilk. Its performance in both our basic test and the maximum settings test demonstrated reliability and minimized the risk of errors.

On the other hand, while the Kiinde claims to use patent-pending SAFEHeat technology to prevent milk from overheating through a circulating warm water bath, we were able to observe overheating in our maximum heating test. The Kiinde warmer continued to warm the bottle at its highest setting, eventually reaching temperatures that we deemed too high. After 8 minutes and 30 seconds, the temperature exceeded 104 degrees Fahrenheit, and after 12 minutes, it rose to 122 degrees Fahrenheit. Therefore, it is crucial to follow Kiinde’s recommended settings to achieve the best and safest results.

In contrast, the Munchkin Speed proved to be the fastest in heating but also the most prone to overheating the contents of the bottle. When used at the maximum heating settings (not recommended), the steam-based warmer raised temperatures up to a scalding 150 degrees Fahrenheit. This temperature is excessively hot for warming anything intended for a baby to drink, which is a significant concern for us. Although this test involved settings beyond the manufacturer’s recommendation, we believe many parents could inadvertently make this mistake due to time constraints or simply forgetting that the bottle is in the warmer.

Overall, it is crucial to choose a bottle warmer that prioritizes safety and maintains consistent temperatures within the appropriate range. The Chicco NaturalFit has demonstrated reliable and safe performance, while the Kiinde and Munchkin Speed have shown some limitations and risks, particularly in terms of overheating.

bottle warmer - all bottle contents should be tested on your inner wrist after...
  All bottle contents should be tested on your inner wrist after swirling and before giving to your baby. The inside of your wrist has thinner skin and is more sensitive to temperature than your hands.

Always Swirl

Swirling a warmed bottle for approximately 30 seconds is an important step to ensure even distribution of heat and to eliminate any potential hot spots. After swirling, it is crucial to check the warmth of the contents before feeding your baby. The recommended method for testing the temperature is by placing a few drops on your inner wrist. The skin on the inner wrist is thin and sensitive to temperature, making it a reliable indicator. Milk warmed to body temperature should feel barely warm, neither too hot nor too cold. It is essential to ensure the temperature is appropriate and comfortable for your baby before feeding.

bottle warmer - the naturalfit user interface has two options that focus on...

Ease of Use

When it comes to convenience and user-friendliness, the Tommee Tippee 3-in-1 Advanced and the Chicco NaturalFit emerged as the top contenders in our ease of use testing. These warmers were praised for their straightforward setup and operation, making them hassle-free for busy parents. The simplicity of these models means they require minimal preparation and maintenance, allowing for quick and efficient bottle warming. Additionally, the user interface on both warmers was found to be intuitive and helpful, ensuring a seamless experience for most users.

Each warmer requires water in the reservoir to operate correctly...
Each warmer requires water in the reservoir to operate correctly. Water bath warmers need more water than steam, and steam typically requires a more precise amount of water.
Filling an external reservoir is easier than trying to make precise...
Filling an external reservoir is easier than trying to make precise measurements in tiny vials.

Water Reservoir

An integrated or attached water reservoir in a bottle warmer, such as the ones found in the Kiinde Kozii, Chicco NaturalFit, or Dr. Brown’s Deluxe, offers a significant advantage in terms of time and convenience. With these warmers, there’s no need to add water before each use as the reservoir provides a continuous supply. This eliminates the need for precise water measurements or the hassle of filling a separate vial, as required by steam-based warmers like the Boon Orb. By eliminating the extra steps, these warmers streamline the process, saving you time and making bottle warming a more efficient and hassle-free experience.

bottle warmer - we love the warming guide on the back of the brezza and we wish all...
We love the warming guide on the back of the Brezza and we wish all manufacturers would follow suit with this quick reference method.

Setting Timer and Warming Charts

When using a bottle warmer, it’s important to follow the instructions provided, as they often include charts or guidelines to help you set the timer for optimal warming. These instructions may vary depending on factors such as bottle size, material, and desired temperature. While some instructions can be straightforward, others may be more complex, requiring you to consider multiple variables.

During our testing, we found that certain warmers may require some trial and error to achieve the desired results. It may take a bit of experimentation and adjustment to find the perfect setting for daily use. However, with a little practice, you should quickly get the hang of using your new warmer effectively. We appreciate warmers like the Kiinde Kozii, which display timer settings in minutes, making it easier to set precise warming times. The Chicco NaturalFit also offers simple controls with a dial that can be turned to either baby food or bottle warming. The Tommee Tippee 3-in-1 Advanced has a few more settings, but the inclusion of clear symbols like the snowflake and bottle icons makes it easy to understand and operate.

bottle warmer - while the orb has multiple parts to clean, the plastic parts are...
While the Orb has multiple parts to clean, the plastic parts are dishwasher safe and the chamber is easy to wipe.

A few steam-based warmers like the Munchkin Speed and the Boon Orb include a lift-out “basket” to remove the bottle since it can become too hot to handle after a warming cycle.

bottle warmer - unlike much of the competition, the tommee tippee can easily heat...
Unlike much of the competition, the Tommee Tippee can easily heat breastmilk in storage pouches.

Compatibility and Versatility

For example, the Dr. Brown’s Deluxe warmer is well-suited for Dr. Brown’s Natural Flow Original baby bottles, which are narrow and tall. However, it may not be suitable for bottles with a wider mouth, such as the Tommee Tippee glass feeding bottle or the Comotomo bottle.

If you anticipate using different types of bottles or breastmilk storage pouches, it would be beneficial to choose a bottle warmer with versatility in bottle compatibility. Look for warmers that have adjustable settings or wider openings to accommodate various bottle sizes and materials. This way, you can ensure that your preferred bottles or pouches can be safely and conveniently warmed for your baby.

bottle warmer - the orb quickly heats bottles but it lacks an audible indicator that...
The orb quickly heats bottles but it lacks an audible indicator that the cycle is over and it can easily overheat contents if you leave the bottle in the chamber after the end of the cycle.

If you are using glass bottles, make sure the bottle warmer you choose is glass compatible. For example, Boon Orb is not compatible with glass as rapidly rising temperatures increase breakage risk.

If you are unsure what bottle your baby will prefer, go for a versatile warmer like the Tommee Tippee 3-in-1 Advanced, Kiinde Kozii, or Chicco NaturalFit. All three of these warmers are compatible with most bottle shapes, sizes, and materials, including breastmilk storage pouches.

Portability and Footprint

If you have height restrictions or need to fit the warmer under upper cabinets, it’s important to consider the height of the warmer. The Baby Brezza Safe and Smart, Beaba BabyMilk, and Dr. Brown’s Deluxe warmers are taller than 10.5 inches, which could pose difficulties fitting them under some cabinets.

bottle warmer - the munchkin works with a variety of bottle shapes, though taller...
The Munchkin works with a variety of bottle shapes, though taller bottles may not heat efficiently as much of the bottle will be outside the warming chamber.

Warming Efficiency

Warming efficiency is indeed an important factor to consider when choosing a bottle warmer. The ability to consistently heat the contents of a bottle to a similar temperature at a similar rate ensures that you can rely on the warmer to provide the desired warmth without prolonged waiting periods.

In your tests, the Dr. Brown’s Deluxe and the Boon Orb were found to be the fastest warmers. These warmers utilize steam heat technology, which enables them to heat bottles quickly. However, it’s important to note that steam heat has some limitations and potential risks.

For instance, the Boon Orb’s steam heat technology may not be suitable for use with glass bottles due to the potential for breakage during rapid temperature changes. This is an important consideration if you prefer using glass bottles for your baby.

Moreover, steam warmers, in general, carry a risk of overheating milk if used at their maximum settings. It’s crucial to follow the manufacturer’s instructions and recommended settings to prevent overheating and ensure the safety of the milk.

While speed is an important aspect of warming efficiency, it’s also essential to consider the overall performance, safety features, and compatibility with the type of bottles you prefer to use when choosing a bottle warmer.

bottle warmer - a removable basket is placed into the dr. brown's deluxe bottle...
A removable basket is placed into the Dr. Brown’s Deluxe bottle warmer for steam warming.

When using water bath warmers, the process of warming takes a bit longer compared to steam-based warmers. In our tests, we observed that the Kiinde Kozii reached a temperature of 80F at around 5 minutes and 30 seconds, while the Tommee Tippee 3-in-1 Advanced was nearly 90F at 5 minutes. The Chicco NaturalFit took a little longer, with the temperature reaching 80F at approximately 8 minutes and 30 seconds. We believe that these slightly longer heating times are worth the wait to ensure that the bottle contents are not too hot and to minimize any risk of steam-related injuries.

When it comes to thawing frozen breast milk, we recommend thawing it overnight in the refrigerator before use. Thawing the milk in advance will help reduce the warming time required, allowing you to feed your hungry baby more quickly and conveniently.

bottle warmer - the tommee tippee warmer works with a variety of different bottle...
  The Tommee Tippee warmer works with a variety of different bottle types and sizes and you can heat a second bottle immediately after the first.

Consecutive Warming Cycle Wait-Time

While certain bottle warmers allow for consecutive cycles without a wait time, others recommend a brief pause between uses. The option to immediately start another warming cycle is beneficial when heating multiple bottles in succession or when additional time is needed to reach the desired temperature. During our testing, we found that the longest recommended wait time between uses was approximately 30 minutes or until the warmer had fully cooled down.

The Chicco NaturalFit falls into the category of warmers that require a wait time, which may be a drawback for some families seeking continuous and rapid bottle warming. On the other hand, the Tommee Tippee 3-in-1 Advanced does not have a specified wait time, allowing for immediate consecutive cycles if desired. The Kiinde Kozii, on the other hand, provides instructions to reduce the subsequent bottle’s warming time by 30 seconds if the machine is still warm from the previous cycle.

Considering the wait time between uses is an important factor to consider when selecting a bottle warmer, particularly if you anticipate the need for frequent and uninterrupted bottle warming.

bottle warmer - given the hidden water reservoir, the kiinde has some involved...
Given the hidden water reservoir, the Kiinde has some involved cleaning steps.

Ease of Cleaning

Maintaining cleanliness and regular cleaning of the bottle warmer is crucial, although the frequency may vary depending on the unit. Typically, external cleaning involves a simple wipe with a dry cloth to keep the surface clean.

Since bottle warmers use water, it is common for mineral deposits to accumulate over time, particularly in areas with hard water. Therefore, descaling or demineralization of the unit is necessary every few weeks to remove calcium and lime deposits that can build up inside the warming chamber and heating element. Manufacturer instructions often provide guidance on descaling methods, which commonly involve soaking the internal surfaces in vinegar. For instance, the Kiinde Kozii has specific instructions to soak the unit in a mild 1:50 bleach/water solution periodically. Some warmers, like the Chicco NaturalFit, may require overnight soaking, which could be a potential drawback if you rely on the warmer for every feeding.

In assessing cleanliness, we also considered the ease of thoroughly cleaning the warmer. Some products may have challenging-to-reach areas, such as nooks and crannies that are difficult to clean. For example, the Dr. Brown’s Deluxe has a narrow and deep warming chamber, along with a poorly designed water reservoir that makes it hard to access for thorough scrubbing.

Proper cleaning and maintenance ensure the longevity and hygiene of the bottle warmer, so it is essential to follow the manufacturer’s instructions and consider the ease of cleaning when selecting a unit.

bottle warmer - daily cleaning of the tommee is simple, but monthly cleaning...
Daily cleaning of the Tommee is simple, but monthly cleaning requires a bit more effort.

Bottle warmers that received high scores in this aspect generally had fewer components and accessories, along with easily accessible water reservoirs. The Tommee Tippee Travel Warmer stood out as it was straightforward to clean and did not require descaling. The Boon Orb also performed well in terms of cleaning ease. However, the remaining units scored slightly lower, as they required similar effort for descaling, following the provided instructions. Among the warmers we tested, the Dr. Brown’s Deluxe was the least favored in terms of cleaning. It was more prone to accumulating residue or experiencing mildew build-up, even with regular cleaning.

bottle warmer - the chicco naturalfit bottle warmer includes a removable basket...
The Chicco NaturalFit bottle warmer includes a removable basket insert to help ease the placing and removing of containers.


While some may consider a bottle warmer to be a non-essential item, it can significantly contribute to creating a convenient and streamlined feeding routine for parents using formula or breast milk. The benefits provided by a reliable bottle warmer make it a worthwhile investment, particularly for families with multiple bottle users. To identify the best bottle warmer for your specific needs, we conduct thorough testing and evaluation. Our assessments cover important factors such as safety, warming efficiency, and ease of use, ensuring that our recommendations are based on real-world functionality. Whether you have specific requirements or a limited budget, we are confident in our ability to identify top-performing bottle warmers and provide suitable recommendations.

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