5 Best Bottle Warmers of 2024

Testers for our most recent Parenting Awards said this was the best warmer that they tried. "It can warm a 5-ounce bottle of refrigerated breast milk in about 3 minutes," one parent told us.

It warms consistently thanks to circulating water that helps ensure there are no hot spots. (You pour water into the device's open top.) It features temperature control that should detect initial temperature to prevent milk and food from overheating. When the milk or food reaches the optimal temperature, the indicator light tells you that the bottle is ready and keeps it warm for up to 60 minutes before automatically shutting off. It fits most bottles (including odd-shaped ones, like Comotomo) and baby food jars.

Our caveat is that, in Lab tests, this did not work optimally with glass baby bottles. "Heating five ounces of milk in a glass bottle took two and a half minutes longer than advertised on the box and the milk got up to 125 degrees, which is too hot for baby," noted a Lab pro — and some online reviewers agree that the Fast does not work well with glass.

But across the board our consumer testers praised this for being quiet, aesthetically pleasing and small enough to easily store in the kitchen. "It is very easy to use and intuitive — you just set it to however many ounces the bottle is and hit the button," said one. It also has a setting for frozen milk or purees.

This bottle warmer works with steam, and because it comes with a little basket it can hold and sanitize pacifiers and breast pump parts in addition to heating bottles and baby food jars.

Like our best overall pick, this has an automatic shut-off to prevent overheating. And it works with almost any kind of bottle — wide mouth, narrow mouth, disposable or angled bottles. Unlike our best pick, however, there is nothing reading the initial temperature so it is possible to get the milk hotter than you intend, especially if you are only heating a small amount.

Since this works by boiling water into steam you will need to add a small vial of water at every use (the vial fits onto the front of the machine). A light indicator will go off when the bottle is ready. But use caution; small parts, especially, can come out of the sanitizing process very hot. Note: With any bottle warmer, you will want to thaw frozen breast milk before heating, and then be careful to ensure it doesn't get over a hundred degrees in order to not damage some of its nutrient properties.

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Perfect for times when you'll be out with the baby all day, this portable travel bottle warmer can fit in your diaper bag. It's a two-part system: The insulated stainless-steel thermal flask holds about 12 ounces of boiling hot water for 10 hours. The extra-large plastic container acts as a warming chamber that is big enough to fit most bottles, pouches or baby-food jars. When you're ready, pour the hot water into the plastic container and then add the bottle or jar to warm it.

The hot water bath brings milk to a warmer temperature. The exact temperature will vary depending on whether you're using the hot water after just one hour in the flask or after nine hours, since it may cool over time. But this is still super useful if you're out of the house and your baby won't drink milk that isn't warmed.

If you only use a quarter of your hot water at a time, you can heat up to four bottles or jars with one flask during the course of the day. At home, you'd be better off with an appliance so the heating is more consistent.

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The Kiinde Kozii also scored well with our consumer testers, though a few said it took a bit longer to thaw frozen milk than the instructions said it would. It works similarly to our best overall choice with warm, circulating water, and like the other electronic warmers on our list there is an auto shut-off feature. It accommodates most bottle shapes and heats to a consistent temperature.

You can fill up the tank and warm a few bottles before refilling again, making this warmer ideal for multiple kids, for instance if you have a newborn and a toddler, or if you have twins. Our tip for defrosting frozen milk and food is to run it through two cycles. The biggest tester complaint: "The Kiinde bottle warmer is louder than others because it makes a clicking noise."

Though it is pricier than others, the readout on the Baby Brezza is easy-to-see digital, and the device works with an app that sends a notification when your bottle is ready. It can work in either "Steady Warm" mode — which uses a warm water bath to safely heat or defrost breastmilk — or "Quick Warm" mode, which uses steam heat to work quickly (best for formula and baby food).

There is a basket inside that fits almost all bottles, pouches and food jars, and there is an auto shut-off feature to prevent overheating. For parents who frequently make formula, another option is using the $50 Baby Brezza Instant Warmer which dispenses warm water on demand for making bottles. Our consumer testers have also liked the $180 Baby Brezza Formula Pro Mini, which one said "makes bottle time so much easier and less messy" by mixing, heating and dispensing formula.