I see quite a few local places weighing their dose precisely, but then it’s all futile as the grind is still all wrong and the resultant coffee is terrible. I can only assume this is down to bad training. The barista has taken the time to dose the PF correctly but doesn’t know to periodically taste or check the output.
In London and some of the more notable roastery cafes I’ve been to I’d commonly see proper Barista training happening or an employee off to the side tasting the coffee.
Something I wonder is how many commercial machines have volumetric extractions? I don’t think I’ve ever seen a set of scales on the drip tray of a commercial machine so I guess they must be timed shots since they auto-stop.
If these aren’t set each morning and checked alongside the grind then it’s another variable to go wrong.
I definitely think customer appetite is a factor. In an area with a lot of high quality coffee shops I guess peoples taste improves. It’s the same with restaurants, most of them round here are mediocre at best but always full…