Learning to cook is mainly about mobile phone skills, and ordinary restaurants also look at the finished dishes you take out, so there is no requirement for certificates.

Of course, some star-rated hotels may care about your certificate, but this is just icing on the cake.

Regarding the certificate you mentioned, the certificate of China cooking technician issued by the Ministry of Labor is recognized by the whole country and even abroad. This certificate has five grades, from low to high: junior chef, intermediate chef, senior chef, intermediate technician and senior technician. This certificate has places to apply in all provinces. The details can be found online. There is no requirement for academic qualifications, but there is a requirement for age when applying for the exam.