| 摘要 |
A method of stock control for food retailing, in which a first batch of product produced between a pair of dates is marked with a colour associated with that period and a second later batch is associated with a different colour. A series of 4-6 colours denote a 4-9 week cycle if the colour changes weekly. The retail staff remember the sequence and recalls and stock rotation is simplified. Packages are described in which the colour is on a label, wrapper or tag.
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