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Yes, if they are not kept sufficiently drowned in the oil or brine.
If you buy them "dry" in bulk at the market, in a simple plastic bag, there's definitely a risk. You'll be able to keep them for a relatively long time if you keep the bag perfectly closed with a minimum amount of air, but still not as much as if they were in a jar.
Also, if they are not packaged in the traditional way but in an industrial tin can that you can not close, they will only survive for a short time.
If kept in a jar, you can easily keep them in perfect condition for a full year. You could have some mould developing on the surface but it has no consequence on the olives below this surface.
Wiki User
∙ 6y ago
Wiki User
∙ 15y agoyes. it takes about a year for them to spoil, but after a certain amount of time they do go bad, and if you eat them after they spoil, you could get deathly ill. so becareul
Wiki User
∙ 13y agoif you kept them their too long then they would probably spoil
Wiki User
∙ 12y agodepends on how they are stored.
fresh yes. bottled no
Wiki User
∙ 14y agoThe brine can grow yeasts and molds.
Wiki User
∙ 13y agoyes they go white in there preservatives.
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Does a banana spoil faster on a counter or refrigerator?
the refrigerator
Why does food not spoil in the refrigerator?
Food does spoil in the refrigerator. The growth of spoilage bacteria is slowed down due to the colder temperatures.
Do tomatoes spoil faster at room temperature or in a refrigerator?
they spoil faster at room temperature
Do black olives expire?
Yes they will spoil. This food will last for a few days. 5 days in the refrigerator is as long as you want to store this food here. Place the food in an air tight container or freezer bags.
Why are vegetables stored in the refrigerator?
vegetables are stored in the refrigerator so they can stay fresh and not spoil
Does milk spoil faster in or out of the refrigerator?
Of course, milk can only spoil OUT of the fridge, or when the milk has expired
Will food spoil in refrigerator at 50 degrees?
Foods can spoil at 40°F in the refrigerator, so the answer is, 'Yes.' How long it will take or the type of spoilage depends upon the food itself.
I heard that hot chicken broth will spoil if put into a refrigerator in a sealed container. Should be cooled in the refrigerator first before putting on a lid tightly so that it won't spoil?
Bad advice.
Does food in a small refrigerator spoil faster than a large refrigerator?
If they are both set at and holding the same temperature - No.
How long does it take for a chocolate pie to spoil out of the refrigerator?
1 month.
Where does strawberries get spoil the most?
Strawberries spoil easily if you just leave them out on the counter. If you don't want your strawberries to spoil, I suggest that you put them in the refrigerator like a normal human being.
What is the use of fridge?
Primarily to try to keep food fresh and not spoil. To make food not spoil so quickly is the true use of a refrigerator.
