The Oscar 300 is a great way to prevent scale build up in espresso machines that use a reservoir, without sacrificing any quality in your machine's performance.

The Oscar 300 works by removing calcium and magnesium ions from water as well as those of several other heavy metals that may be present; which are responsible for scale build-up.

To use the Oscar 300,

1. Remove it from its transparent and protecting wrapper
2. Once the plastic has been removed, rinse with cold water to activate the granules
3. Place into your espresso machine's water tank while it is empty before filling it up with water.
   

As water interacts with the resin microspheres, it will be subjected to an osmotic and magnetic softening process, starting to transfer calcium and magnesium ions having back sodium ones.

The Bilt OSCAR 300 is suitable for water tanks up to 5 litres.