I've received several queries about how Bengle manages to integrate a scale.
The secret is to hold the drip tray top on two weighing bars, and to have a drip tray underneath collect the water as it passes through.
This allows you to “flush” all you want, and not affect the weighing. It also means you can plumb your espresso machine in.
And, since the scale is hard wired, there's no batteries or bluetooth pairing to worry about.