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This is a new type of reminding tag.
With the change of color, we can know how long the meat has stayed here easily. Even the supermarket staff can recognize it clearly to change the old one. When we buy meat with the tag coming home, with the change of color, we can be alert to cook the meat as soon as possible.
Tatung University
Tatung University
Taipei, Taiwan
TA-CHIH LIN
YI-YING CHEN
