3. A barcoded indicator according to claim 1 and wherein only one of said first barcode, said second barcode and said at least one third barcode is machine readable at any given time.
1. A barcoded indicator operative to provide a machine-readable indication of exceedance of at least one threshold by one or more product quality affecting parameters, said barcoded quality indicator comprising: a first barcode; a second barcode; and at least one third barcode, each of said first barcode, said second barcode and said at least one third barcode including a machine-readable state and at least two different non-machine-readable states, one of said first barcode, said second barcode and said at least one third barcode being in at least one of said at least two different non-machine-readable states prior to exceedance of said at least one threshold and being in said machine-readable state following exceedance of said at least one threshold.