It is hereby declared to be the policy of the legislature, recognizing that food in its various forms is essential to the health and well-being of the people of this state and that its production, processing, packaging, labeling, handling, distribution and sale may create health hazards, misinform consumers, perpetuate frauds or otherwise jeopardize the public health and welfare and in order to effect an efficient and simple form of licensing, to require that every person who handles food in a manner described herein, shall obtain a license therefor from the commissioner and that all producers, processors, packagers, labelers, handlers, distributors and vendors of food, whether or not subject to licensing, shall be required to comply with all applicable rules adopted by the commissioner.