The Tommee Tippee Electric Bottle Warmer heats baby bottles and jars in just 4 minutes. It can heat a multitude of products, from breast milk to baby food. To get your bottle at a good temperature, simply place it in the bottle warmer, add water and adjust the temperature. - The warming time of 4 minutes is based on heating a 150 ml portion of milk at room temperature (20 ° C). - Fits most brands of food bottles and jars.