How do I activate the Brita filter?

Activating the Brita filter is a simple process that typically involves soaking it before the first use. To activate it, you should submerge the filter in cold water for 15 minutes, allowing it to soak up water and expand. After soaking, insert the filter into the Brita UltraMax and fill the reservoir with cold water. The water will then filter through the activated filter, ensuring it's ready for drinking. Users appreciate that this prep step is quick and ensures the best filtration. Pro tip: Always give the filter a gentle shake to remove any excess air before inserting it. Consideration: If you forget to activate it, allow the first tank of water to filter completely to ensure the filter is ready.