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Stay extra safe: If the burger's not hot enough and you have to cook it longer, be sure to wash the thermometer before you test the meat again to avoid cross contamination.

更安全的做法：如果肉类还不够热，你应该再煮一段时间。记得在重新测量之前把温度计清洗干净，避免交叉感染。

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Like NOP, JAS explicitly requests that organic fields must be separated from conventional fields, to prevent cross contamination from fertilizers and pesticides (buffer zones).

与NOP相似，JAS要求有机地块与常规地块之间必须建立隔离带，以防止交叉污染。

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Cross-contamination is the cooking or serving of different foods with the same utensils and surfaces.

CNN: Food allergy diagnosis: What parents should know

Keeping unsafe items out of your food storage and preparation areas will reduce opportunities for cross-contamination.

CNN: Food allergy diagnosis: What parents should know

The bigger concern than reputation cross-contamination is the spillover of an actual security threat.

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