The influence of colour on the perceived need of effort to open mineral water packages with screw caps.

Most of the appreciation of a product occurs through colours and, if misused, can lead to failure The objective of the present study was to verify if the colour of the container influences the perception of the effort to be exerted to open mineral water bottles with screw caps. For this, three packages with identical shapes were used, but in three different colours: red, blue and transparent. The subjects could not touch the packages, only observe and then classify them in a Likert Scale (with ideograms) of three points. The results show that youth and adults considered the blue bottle as the one that apparently requires less effort to be opened, while for the elderly apparently less effort is required to open the transparent bottle. In all cases the red package was related to the greater effort, with significant difference when compared to the other packages. However, there was no significant difference when the blue and transparent bottles were compared to each other.