How do you get salmonella from an onion.....

hopi · ‎03-09-2010

......or any skinned or layered fruit or veggie. It would seem that when you cut the outside 2 layers off and into the onion bacteria would not be present.

CalminHeart · ‎03-09-2010

@hopi wrote:
......or any skinned or layered fruit or veggie. It would seem that when you cut the outside 2 layers off and into the onion bacteria would not be present.

It was likely contaminated during processing. Perhaps the machines had been used before with meat or some other product that carried the bacteria.

Bacteria grows a number of ways and can penetrate layers. If I gave you 20 onions and told you 2 had salmonella, would you eat any of them?

Mz iMac · ‎07-26-2014

Per AARP......

"“For fruits and vegetables, Salmonella contamination typically occurs due to poor agricultural practices including the usage of improperly treated manure, contaminated irrigation water, food handlers don't wash hands, etc.," says John Gibbons, an assistant professor in the University of Massachusetts Amherst's Department of Food Science."

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itsmagic · ‎08-08-2011

I’ve heard that the onion itself can be contaminated while removing the skin such as from the surface it is laying on, your hands or from a knife cutting the end off before peeling. I remember when melon was the culprit of salmonella and they said to wash the outside of the melon with soap and water before cutting the skin off.

KingstonsMom · ‎03-09-2010

Commonly caused by salmonella present in the water used in growing the onions.

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gardenman · ‎03-09-2010

@Mz iMac wrote:
Per AARP......

"“For fruits and vegetables, Salmonella contamination typically occurs due to poor agricultural practices including the usage of improperly treated manure, contaminated irrigation water, food handlers don't wash hands, etc.," says John Gibbons, an assistant professor in the University of Massachusetts Amherst's Department of Food Science."

It can also just be bad luck. If a sick animal poops on or near a plant, that plant can then become contaminated. When that plant is harvested and tossed into a cart/bin of other plants it jostles against them and can spread the contamination. The person or machine that harvested the plant could be contaminated in the process of harvesting and spread it to plants harvested afterwards. Unless you grow food in a sterile lab, there's always going to be a risk of contamination. It just is what it is. It's not always "poor agricultural practices." Bad luck can play a more significant role.

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