The employee said black aprons are reserved for "coffee masters." Starbucks baristas have to become certified coffee masters to wear black aprons. Once they're approved by a manager, they have to learn basically everything there is to know about coffee before they can officially call themselves a coffee master. So, if you have a question about something specific, look for a barista in a black apron.
Shortpedia is a short news app which provide latest news in 70 words in Hindi or English Language. Read Breaking News on our Mobile App which is available on Google Play Store & Apple App Store.