This issue is likely due to not using enough water when sterilizing with your Philips Avent Premium 2-in-1 Warmer & Sterilizer.

Adding too little water makes sterilization finish too quickly, while adding too much water makes it take longer.

Fill the base up to the marking with exactly 60 ml/2 oz of fresh, room temperature water (see the image below) before every sterilizing session.

Note: Always add the correct amount of water as indicated and do not allow the base to overflow.

The information on this page applies to the following models: SCF359/20, SCF359/00.