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Japanese study finds ‘optimum’ aluminum bottle opening size for Coke drinkers
date:Aug 14, 2012
Writing in the journalApplied Ergonomics, researchers Takanori Chihara and Koetsu Yamazaki said that Japanese consumers were now familiar with such bottles, but that the majority felt that a 28mm opening was too small and a 38mm opening too large.

Therefore, the researchers developed a model to assess consumer feelings (14 Japanese university students: 4 of whom were female) when they drank directly from a bottle opening, to help assess the optimum bottle opening diameter.

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03/12 13:39