Rework and Work-In-Progress (WIP)
The term rework refers to finished or partially finished products that are reincorporated into the manufacturing process.
Work-in-Progress (WIP) consists of partially finished products that are between different production stages/ steps.
Both rework and WIP can increase the risk of introducing allergens, either by erroneous addition of allergen containing rework/WIP into a product that does not contain the specific allergen(s) as ingredients, or by cross-contact of allergen-containing materials with non-allergen-containing materials through shared containers or utensils during holding or storage.
