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When cooking and adding oil or soy sauce on food, the blind or visually impaired have to pour more than they really need and leave the rest in the bowl. We redesign a spray bottle with a teaspoon in it. The amount of the teaspoon shows the amount of the liquid been released from the spray bottle by extruding the spray handle once. Therefore, just touch the teaspoon, the blind people will know the amount. Then, oil, vinegar or soy sauce will be shoot from it as desired.
National Cheng Kung University