1. A method for analyzing a fluid residual product, consisting of a rinsing solution and a product loss, from a process for cleaning objects that are part of a manufacturing process, comprising the steps of measuring the flow of residual product at repeated occasions at a physical location in the cleaning process, measuring a magnitude corresponding to the contents of product loss in the cleaning system at the same repeated occasions at the same location in the cleaning process, determining based on this information the amount of product loss that flows past during a time period (t 0 −t 1 ), and reporting this information related to the final product or raw materials of the manufacturing process.