KiindeKozii Bottle Warmer



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What weabout it
Heat up any bag, bottle, or jar in this food warmer that preserves nutrients through a gentle warming process.

About this Product
  • Heats bottles in about 5 minutes
  • Safe to use with all bottle and bag types
  • Built-in timer and auto-shutoff


One of the first things your doctor will mention is that you can’t microwave milk to give to your baby because it can get hot spots that will scald your baby’s mouth. (Yikes!) So how do you warm up milk? Some parents just put a bottle in a bowl of warm water and wait for it to warm, but some find a bottle warmer that also uses warm water to be really useful. With a bottle warmer, the process is straightforward and you know the milk is at the right temp.

The Kiinde is a versatile warmer that’s compatible with nearly everything you’d want to use it with - breastmilk storage bags, baby food jars or pouches, and any type of bottle. It is much wider than most bottle warmers, so it can even fit hefty Comotomo bottles. It warms any meal to a comfortable temp via a water bath that’s about the same temperature as warm tap water. That keeps the food from losing nutrients and avoids hot spots.

It also offers conveniences like a large water reservoir you don’t have to refill each time and an auto shutoff function that keeps food from overheating. These are especially handy for parents who are trying to do a bazillion things at once – and if you have twins and need to heat up many bottles one after the other.

Cleaning this bottle warmer though is intense with different steps to be done after a couple of days, weeks, and months.


  • Compatible with most containers
  • BPA-free plastic
  • 7.7” x 7.4” x 5.2”

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User Reviews (47)

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July 7, 2019

Takes too long to thaw milk and still isn’t warm once thawed.

June 20, 2019

We didn't think we would need a bottle warmer. Then we spent precious time heating water in the microwave and letting the bottle warm. Those minutes felt like hours with an unhappy baby at 2am. This bottle warmer is so simple and absolutely essential.

May 15, 2019

We used this bottle warmer for 9 days and it broke on us. We loved it for the time it was working. It warms the bottle quickly and evenly. Very disappointed, though, as it only lasted us 9 days.

May 14, 2019

Slow, steady heat for gentle care of breastmilk milk nutrients.

April 11, 2019

It gets the job done and is relatively quiet. I feel like the inside gets dirty from the sitting water and it bothers me that I can’t clean it very well.

April 9, 2019

Easy to use.

March 28, 2019

Does the job. I've never had any trouble with it.

January 11, 2019

Before I bought it I didn’t think to read about how to clean it. It has a somewhat intense, rigorous cleaning regimen that I do not follow (who has time for that?!). So far, it hasn’t broken down. It’s very handy to have to reheat frozen or fridge bm/formula.

November 12, 2018

We received the Kiinde Kozii as a baby registry gift and used it for about 3 weeks when the unit failed to heat bottled breastmilk. Reaching out to the manufacturer was a trying process: we had to have the recipient track down a receipt and then go through a lengthy troubleshooting process (weeks of Q&A back and forth emails) before the manufacturer provided a replacement.

All this while little one still needed nutrition and a solid way of heating cold breastmilk! In the end we did get a replacement but had been using another method to heat breastmilk that was more convenient.

Keep the unit filled with fresh water. Cool the unit down, unplug and toss the used water and replace with new at the end of the day or else you'll get yucky gunk build up. The unit makes a loud ticking sound as it's heating which some can find bothersome.