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Warming a Baby Bottle with a Microwaved Mug of Water

When my wife and I first came home from the hospital we were in a delirious state, and while I had heard numerous ways to warm a baby bottle, I started to doubt my memory.  I frantically called a few relatives and friends to get their perspective and tried a number of methods, but what worked best for us was using the microwave.

Warning – you do not, ever, put the bottle or contents of the bottle in the microwave.

What Works For Us:

  • Fill an extra large coffee mug half-way with tap water – careful not to fill too much since the water may overflow once you place the bottle in the mug.
  • Heat mug of water in the microwave for 2 minutes
  • While mug is heating you can prepare the bottle, if it’s not already prepared
  • Place the bottle in the mug for 2 minutes if the bottle and liquid was cold, 1 minute if originally at room temperature
  • Test liquid temperature by dabbing a small amount on your wrist
  • Feed the baby


The amount of time you place the bottle in the hot water will vary depending on the type of bottle, size, amount of liquid, and start temperature of formula/milk.

For best results, keep the mug over the sink while the bottle is warming and test the formula/milk a few times.  You will end up spilling some water, hence the advice of testing of the sink.

One Response to “Warming a Baby Bottle with a Microwaved Mug of Water”

  1. Karin says:

    It’s like you are looking in my kitchen. Exactly what we do in our house. One recommendation I recently got from a friend was to use one of those glass, pyrex-style measuring cups. The 2 cup size works great.

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