People make mistakes—more often than we might like to think. Studies have shown that no matter how well-trained a worker is, or how well-maintained the equipment is, errors still occur. Tasks are forgotten, and equipment breaks. Standard work and "one right way" can help reduce errors.
Mistake proofing, also known by its Japanese equivalent, "poka-yoke," is a method used to reduce or eliminate errors, or to make those errors immediately obvious. Ensuring that non-conforming product is never created—or at least never arrives at customers' doorsteps—is invaluable in the food industry. Reduced downgrade, less rework, and decreased out-of-specification product are all benefits of mistake proofing.