| 摘要 |
The invention provides an temperature exposure indication accessory (10) which consists of an enclosure (12) having a transparent cover face (14). The enclosure (12) is fixed to packaging (18) of a frozen article. The enclosure (12) contains a substance that is transformable when exposed to any temperature below freezing point for a predetermined period of time such as parts (16, 20) formed of differently coloured iced water. The environmental conditions under which the parts (16, 20) will melt, mix and, accordingly change overall colour are approximately equivalent to the conditions under which the quality of the frozen article will be compromised. |
