If you cannot find your Saeco GranBaristo espresso machine in the Bluetooth menu, there is a reason. Please read along.
Troubleshooting
I cannot find my Saeco GranBaristo in the Bluetooth menu.
This is normal behaviour
The Saeco GranBaristo machine is a BLE device.
Apple has chosen to let BLE devices only be discoverable from applications that can use them, so you will never see BLE devices in this menu.
Instead you must find the device through the app.