We’ve now gone through two frothers with the same fatal flaw: the spring coil eventually works itself loose and ends up in our drinks.
The circular stainless shaft that holds the coil has a small open gap where the ends overlap. Since that loop isn’t fully closed or welded after the coil is installed, the spring gradually spreads the opening during use. With the high RPM and centrifugal force, the coil eventually slips off and once it starts loosening, failure is inevitable.
It’s frustrating because the frother itself performs well: strong motor, multiple speeds, good frothing, however the spring attachment method seems to be fundamentally flawed. Unless the manufacturer moves to a fully closed or welded loop (or a captive whisk design where the coil can’t detach), this will keep happening.