I've been asked by a few people how the best way to become a barista.
I usually direct them to courses listed by specialty cafes or specialty coffee academy.
These offer the best training. Not just about making coffee properly but also knowledge of how and where coffee is grown as well as processed. Some basic but informative knowledge of how coffee is roasted may be given.
Of course, training properly gives them the training wheels and a stepping stone to a life as a barista, but it doesn't stop there.
Passion is a major key in excellence and ongoing support and training on the job in the right environment
Young people thrive on compliments. If it's a good cup of coffee that's well made, we should give a verbal credit to those youngsters. It gives them confidence and a willingness to strive to make a better cup.
We know all too often a person can ask for a job as a counter hand and then thereafter they are let loose behind a coffee machine without formal training. It's from these places that coffee is made without any real understanding of the facts and science behind it.
OT. This lovely lady should be given details to a accredited barista course. She seems like a responsive person so that's a good start.