Troubleshoot difficulty frothing on the Bezzera Unica PID.
As with brewing, technique is critical to frothing well. Frothing is very sensitive to technique, which has a steep learning curve. If the machine is producing steam then an adjustment to technique may need to be made. The video below shows proper frothing technique.
How to Froth and Steam Milk for Latte Art, Cappuccino and More