Grounds in your cup are generally caused by water overflow.
To prevent this, you can increase the RPM to avoid an overflow of water (to do this, adjust the “Speed” slider in the Spinn App under the “Customize drink” tab).
Depending on the recipe you have digitally scanned from the Marketplace, the amount of water may differ. The sliders give a good indication of how much water will flow into your cup. Also, as taste preferences vary, the customizability of the sliders gives each user a unique choice!
Should there still be noticeable coffee grounds in your cup after having adjusted the sliders, please contact Spinn for further assistance.