A Guide to the New Rules of Parenting: Why Babies Can't Sleep on Their Stomach and More
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What's Out: Microwaving a baby's bottle, putting baby to bed with a bottle
What's In: Serving bottles at room temperature, using a bottle warmer, or heating bottles in a pan of hot water; keeping bottles out of the crib
Why? While many moms used to rely on the microwave as a quick way to heat a baby's bottle, pediatricians now warn against this method because it can create "hot spots" that can burn a baby's mouth or throat. Most doctors will tell you that there's no need to heat a baby's bottle — just use room temperature water when preparing a bottle with infant formula. Moms who are wary of the chemicals in plastic are especially against heating up baby bottles. To warm a bottle, simply swirl the bottom of it around in a pot of hot water. As for keeping it out of the crib, pediatric dentists warn that this is a no-no, because it can cause tooth decay.