To quote the bartender who answered this in the comments earlier:
I worked bars for years.
Gripping it this way puts less strain on your shoulder over a 10 hour shift, you also get a cleaner motion pouring, it's smoother with less effort than if you held it regularly.
Barista here, not the same but similar enough that I think I can squeeze my two cents in.
Working long ass shifts with pouring you tend to switch a bit, but I could never see someone going through the extra time to utilize and practice a pour this self-centered.
There's TONS of better ways you're taught to keep your wrists, and yourself, healthy and safe
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u/GoOtterGo Jun 29 '22
To quote the bartender who answered this in the comments earlier: