Decide what needs a specification
List what you buy and what you make: ingredients, food-contact packaging, processing aids and finished products. Rank them by risk.
A bought item gets a detailed , and a low-risk dry good gets a shorter one.
exist for the items a customer once asked about, and nothing else.
in raw materials are part of what a food business has to understand. also relies on written descriptions of raw materials, food-contact materials and end products.