How accurate does the quantity check / mass balance on traceability need to be as specified in clause 3.9.2?
It is unlikely that the mass balance check will be able to account for all materials to an accuracy of 100%, however, the company needs to justify the discrepancies and demonstrate they understand the nature of the variance through dehydration of fresh ingredients, typical wastage on equipment and portion variances for example. The principle of this requirement is to ensure that the traceability system is effective and mass balance is a key measure of this workability and highlights areas for improvement.
