There are many grades of chefs, and each grade has a different certificate, which represents the identity and qualification of chefs. The lowest-level chef is a junior chef, and the average technical school graduate is an intermediate chef, but he is the lowest third-level chef in the intermediate. It takes two years to hold the third-level chef certificate before you can learn the second-level certificate; Hold the second-class certificate for two years, and then study the first-class certificate. Holding a first-class certificate for two years and at least 30 years of age, eligible to participate in the training examination of senior chefs and second-class chefs; Hold the second-class chef certificate for two years, at least 33 years old, you can take the first-class chef training exam. A first-class chef is not the highest-level chef, but a technician is the highest-level chef. At present, the chef's certificate is divided into junior, intermediate, senior, technician and senior technician. Generally speaking, the exam starts from the primary exam, and registration can be reported at any time, but the exam cannot be taken at any time. You have to take the exam with the school-running units in the society. The procedures are complicated and you have to specify several courses. But I suggest you do some research first, and then you must learn from teachers and famous teachers, so that you can make a difference in the future. The certificate is just a proof, and you have to learn from the teacher to have a good way out! After more than ten years, you have learned the technology, obtained various certificates, and become famous in the circle. The executive chef of a four-star and five-star hotel is yours! But the chef's business is very hard. You must suffer. Good luck!