Knowledge of: purpose and basic principles of mixing and refining chocolate, including: processing stages in chocolate making and the role of mixing, refining and pre-refining as appropriate ingredients used in chocolate and those introduced during refining, such as ingredients in different types of chocolate as appropriate to production requirements and an understanding of the quality requirements and role of each main ingredient changes that occur in ingredients during mixing and refining significance of particle size for product characteristics basic operating principles of equipment, such as main equipment components, status and purpose of guards, equipment operating capacities and applications, and the purpose and location of sensors and related feedback instrumentation services required and action to take if services are not available the flow of the mixing and refining process and the effect of outputs on downstream processes quality requirements of ingredients used and effect of variation on process performance and outputs quality characteristics required of the refined mass operating requirements and parameters and corrective action required where operation is outside specified operating parameters typical equipment faults and related causes, including signs and symptoms of faulty equipment and early warning signs of potential problems methods used to monitor the mixing and refining process, such as inspecting, measuring and testing as required by the process inspection or test points (control points) in the process and the related procedures and recording requirements contamination/food safety risks and related control measures common causes of variation and corrective action required occupational health and safety (OHS) hazards and controls requirements of different shutdowns as appropriate to the mixing and refining process and workplace production requirements, including emergency and routine shutdowns and procedures to follow in the event of a power outage isolation, lock out and tag out procedures and responsibilities product/process changeover procedures and responsibilities procedures and responsibility for reporting production and performance information environmental issues and controls relevant to the mixing and refining process, including waste/rework collection and handling procedures related to the process basic operating principles of process control, where relevant, including the relationship between control panels and systems and the physical equipment sampling and testing associated with process monitoring and control where relevant routine maintenance procedures where relevant cleaning and sanitation procedures where relevant |