Prepare a CV: Before heading to an interview at a coffee shop, make sure you prepare a CV that highlights your previous coffee making experience, and try to include any coffee-related skills and knowledge, even if the experience was gained in the private sector.
Research your target coffee shop: find out about the boutique coffee shop you want to apply to, including their coffee culture, team of baristas and coffee menu. This will help you demonstrate your interest in them during your interview.
Practical practice: Before you go to the interview, practice and try making different kinds of coffee, including espresso, cappuccino, latte, etc. You can also try different coffee beans. You can also try different coffee beans and grinding methods to improve your coffee making skills.
Learn about coffee: Learn the basics of coffee, including bean types, degree of roasting, bean grinding, brewing methods, and more. This knowledge will help you better understand the principles of coffee making.
Ask a professional barista: If possible, talk to professional baristas and ask them for advice. They can share their experience, offer valuable advice and even guide you through the practicalities.
Prepare for the interview: During the interview, be prepared to answer questions about your passion for coffee and why you want to become a barista. Also demonstrate your willingness to learn and work hard.
Accept an apprenticeship: If you are successful in getting an apprenticeship, continue to improve your skills by actively learning, maximizing your chances of actually making coffee, and asking experienced baristas for advice.
Learning coffee skills takes time and practice, but with perseverance and hard work, you can gradually become a good barista. Good luck!