> The solution would be to figure out how the empty ones are produced and fix that (root cause analysis) Maybe.. maybe not. One possible outcome: Likely pro

> The solution would be to figure out how the empty ones are produced and fix that (root cause analysis) Maybe.. maybe not. One possible outcome: Likely problem: speed of production. Solution: slow down production. Analysis: the loss on sometimes empty boxes is much lower than the loss on a slower production line. Conclusion: the fan is the correct solution.