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The only definitive way to determine the presence of Listeria would be to submit a sample for lab analysis. It has a small infective dose and you cannot see it without microscopy.
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∙ 7y ago
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∙ 12y agothey vary according to the type of food in question but some common ones are change in odour, texture, the appearance of slime caused by bacterial organisms and the growth of mould on the surface. hope this helps
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∙ 14y agoDiariaa and vomiting. im a chef so I know!
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∙ 9y agoIt will smell bad, it will change to a gross color(not the original), it will grow fungus or mold, if it is milk it will get chunky too.
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∙ 13y agoBad odor, not visually appealing or taste bad are a few indicators.
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∙ 7y agoA bad smell, change in texture, or change in color might tell you that food has been contaminated by bacteria.
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∙ 10y agofood
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Will contaminated food always have the same signs?
No. Food can be contaminated with a variety of adulterants - most of which show no signs at all that they are present.
What warning signs are there before a drought happens?
there are no warning signs
What do green warning signs mean?
Green signs are not warning signs. They are signs that tell you it is "safe" to do something.
Does food poisoning develop after or before you eat the contaminated food?
After you eat the contaminated food
How can I find about more about warning signs?
It depends on what warning signs that you are interested in. Many sites offer guides on how to spot the warning signs for illnesses etc. If it is to do with motoring check the highway site for details.
Early warning signs of storms and precautions to be taken to ensure safety?
Early warning signs of storms and precautions
What are five warning signs for obesity?
Cloths don't fit, always buying food, always eating food, frequent bowel movements, you're fat..
What are some of the warning signs of pregnancy?
There are many warning signs of pregnancy. Some warning signs include tingling nipples, spotting, cramping, morning sickness, swollen breasts, a missed period, and/or darkened nipples.
Warning signs are?
Warning signs are usually a sign that something will be or has the possibility of occurring. They are also called symptoms when dealing with sickness.
What warning signs indicate a lack of oxygen?
There are many warning signs that you are experiencing a lack of oxygen. Some warning signs can include skin that is bluish to gray in color, lightheaded feeling, and tingling in extremities such as fingers or toes.
Can you find bromine in food?
it can'tbe located any were as in water that is contaminated or contaminated food which should not be eaten
What are tsunami warning signs?
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