Fill the base of your Philips Avent Premium 2-in-1 Warmer & Sterilizer up to the line in the base (see below) with exactly 60 ml/2 oz of distilled water. 

Notes:

• Do not use more water than recommended or allow the base to overflow.
• Using less water than recommended causes the sterilization cycle to finish too early.

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