Patent application is very demanding. One of the characteristics of patents is that the patented technology must be made public, which means that once you apply for a patent, you can know the relevant patent content through inquiry, so the production methods such as snacks are generally best protected as trade secrets. This can not only ensure that others will not know, so as to continue to generate benefits, on the other hand, if others illegally obtain or disseminate trade secrets, there are also relevant legal protection.