Expired: From Green to Red

The expiration dates that we look at the products, like yoghourt, often are not accurate, and we do not know if it is good or bad ...
I had an idea occurred to me seem simple but effective.
IDEA: Place on the side of the products a green rectangle as it would have direct contact with the product, a measure that within at that time and the product will lose its freshness, that go through yellow rectangles, orange, to red in the moment which the producot is out of date.
This is similar to many cards that we have had from sin and to put our finger changed of colour.
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  • ana maria llopis
    25 de septiembre 10:10

    maybe the title could be from green to red in the same sequence you are suggesting?

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