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People usually squeeze the ketchup on the tray mat, but tray mats contain many toxic materials which make it unsafe to use. The “Dip it clean” is a french fries packaging which have two little “pockets” at the side, by pushing the packaging, two pockets show up and can be the clean container of the ketchup.
National Cheng Kung University
Tainan, Taiwan
National Cheng Kung University
Tainan, Taiwan
Che-Yu Lu, Shao-Yu Wang