A study presented at the 247th National Meeting & Exposition of the American Chemical Society (ACS) reported that a color-coded smart tag could tell consumers whether a carton of milk has turned sour or a can of green beans has spoiled without opening the containers.
from IFT Daily News http://ift.tt/1j3v4Zm
from IFT Daily News http://ift.tt/1j3v4Zm
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