Off-line quality control applied to food products

Abstract
Many applications of off-line Taguchi methods have been reported, especially over the past six years, in areas such as the automotive, plastics and electronic industries. However, case studies in the food industry have been very rare. This work describes the first part of a research programme in which a combination of classical design of experiments and of Taguchi concepts was used to study the effect of six factors on the characteristics of a certain biscuit. The main achievement was a considerable reduction in the variation of biscuit length.

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