For people who are looking for total control over the espresso brewing process, Smart Chef Wireless Coffee Scale is the one for you. Together with the SmartCafe Espresso app, you can easily observe the flow rate and espresso yield to achieve the balance between taste and strength at 0.1g precision. Also all recorded data is exportable via CSV for further analysis.
system update and app optimization
With Family Sharing set up, up to six family members can use this app.