Philips Avent SCF358/00 Fast Baby Bottle Warmer is a safe and easy way to make mealtime more comfortable for baby. It gently heats a 5 ounce bottle in as few as 3 minutes. It circulates milk during warming, so unlike a microwave, it won't cause hot spots. The warmer can also be used to defrost frozen breast milk and baby food. It is compatible with all Philips Avent bottles, bottles from most other leading brands, and baby food jars. The Philips Avent Fast Baby Bottle Warmer allows you to set it and forget it! Sensors auto adjust the heating pattern for different milk volumes and starting temperatures, so it hits the right temperature every time with the push of a button. It also keeps milk warmed to the desired temperature for up to 60 minutes. After 60 minutes it automatically shuts off to prevent overheating. The front panel is intuitive and easy to read with clear guidance on setting by milk volume for accurate results. A progress light lights up in three segments, indicating the warming progress and when milk is ready. The warmer is compact so it's easy to store on a kitchen counter or bedside table for nighttime feedings. Always test milk or food temperature before giving to babies. If milk is still cold, you may have selected an incorrect setting, are using a silicone bottle, or filled the bottle warmer with warm water. Select the milk volume setting based on the milk volume, not the bottle size. If you are using a silicone bottle, when the entire progress indicator is on, wait an additional 3-4 minutes for milk to warm. Always fill the bottle warmer with fresh room temperature water. Do not use warm water.