Warms baby milk in just 4 minutes .Gentle warming helps preserve essential nutrients. Fits most brands of bottles and food jars. Warms breast milk, formula and baby food to body temperature without overheating. Two temperature settings: warm from fridge or room temperature, plus keep-warm setting. BPA-free. Warming times depend upon capacity and starting temperature of feed. Warming time of 4 minutes is based on heating 150ml serving of milk from ambient room temperature (20C) Tommee Tippee Electric Bottle & Food Warmer in White