Bartenders can take a “certified” course re the proper mixing of drinks according to industry standards.
Been a long time ago since my daughter was “certified” re passing this course, but it was an industry (bar/grill, etc) recognized professional training course.
I’ve had several re computer skills/programs and I got a certificate that I passed the course at the end of the training period.
Please do not take this the wrong way. Do they teach the bottle twirling techniques and shaking dice for money for the juke box? I don’t drink hard liquor and don’t know anything about wine. I’m strictly a beer drinker. I was wondering because I used to shake dice with the bartender girls for the juke box, they always picked the songs. I wouldn’t know a Manhattan from a margarita but I liked watching the girls shake that thing back in the day. Getting old sucks.