The collective dining distribution unit is mainly aimed at the business of group meals and related box lunch distribution. The catering distribution is equivalent to the express delivery point, which distributes the prepared food and ingredients uniformly. The central kitchen is a department of chain catering enterprises that integrates the production of some products in order to achieve standardization, standardization, ensure the uniformity of product quality and taste, and reduce costs. There are also R&D, quality control, warehousing, logistics and other standardized enterprises. Personal opinion