When safely stored in a retail or home refrigerator or freezer, it's normal for the colour of meat and poultry to change, according to the USDA Food Safety Inspection Service(FSIS).
根据美国农业部食品安全检验局报道，当肉品在销售、家庭冷藏或冷冻时，肉品颜色发生变化是正常的。
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