Tommee Tippee’s Closer to Nature Electric Bottle and Food Warmer heats bottles and baby food quickly and safely in about 4 minutes. The warmer heats everything from breast milk to baby food while helping to preserve the nutrients that are vital to your baby's healthy development. Just place the bottle or jar in the warmer and adjust the easy to use temperature dial. The Closer to Nature Electric Bottle warmer holds most bottle sizes comfortably and perfectly houses all three Closer to Nature feeding bottle. All the Tommee Tippee Closer to Nature bottles are BPA-free for total reassurance.