The bottle pairs with the Ember Baby app. The app is aware of when a bottle has been positioned on the puck, and then you definitely click on a button in your cellphone to begin warming. The app reveals you a golden line that slowly kinds a circle because the bottle warms, and can warn you when the bottle is prepared. You can even create a bit of profile within the app to trace what number of ounces your child is consuming and whether or not they’re gaining weight.

If you take the bottle on the go, Ember’s intention is that you simply stack the bottle—with breastmilk already inside—onto the warming puck, after which place the thermal cowl on prime of it to put into your bag. (If you are a method person, Ember suggests that you just add water whenever you wish to make a bottle, warmth it, after which add method powder. That method, you needn’t retailer liquids within the Ember bottle earlier than a feeding.) While all three gadgets use magnets to attach, the magnets aren’t significantly sturdy, so this did not really feel very secure to hold or throw right into a bag. And collectively, these things are heavy. It felt nearly as heavy as my crammed 40-ounce Hydroflask.

Do You Need One?

While I cowl baby and parenting products right here at WIRED, bottle heaters had been by no means on my listing. All my analysis has come again to the identical factor: you do not want them. Most gadgets aren’t that rather more efficient than simply inserting your bottle into some scorching water, they usually take up room in your countertop.

Obviously, the Ember skips over a part of that downside. This is not one other countertop gadget to stuff into my small kitchen, and as a substitute it simplifies the heating into the bottle itself. (It’s value noting right here, although, that the majority mother and father undergo greater than two bottles in the middle of a day and shopping for extra proprietary bottles is pricey.)

Also, the Ember is not designed for use with frozen breastmilk—you are speculated to defrost the milk first earlier than placing it into the Ember to then warmth, however that may be carried out in your fridge in a single day earlier than taking the milk out for the day forward.