2, small institutions training should be cautious.
You can't go to a training institution where a few masters can teach hundreds of thousands of kinds of food. Some small institutions always have only 3-5 teachers, but they can teach hundreds of varieties or even thousands of kinds of food and snack techniques. There is nothing they can't teach all over the country, and they can teach as long as you can say it, so the taste of the machine-made food is not guaranteed.
3. You can't go to an unqualified shop.
In Chongqing, many hot pot restaurant owners, whose business is not so good at ordinary times, simply stop doing business and teach Chongqing Xiao noodles. It is difficult for such physical stores to learn the core formula and the taste is not authentic. If you want to study, you should choose a qualified school.