It is not necessary that you can get sick by eating expired yogurt because expired yogurt does not mean that the yogurt has gone bad. Yogurts may still be safe for consumption even past the use-by date as long they smell okay and their texture is fine and not watery.
Eating expired yogurt that has gone bad puts you at risk for a lot of foodborne illnesses, but it is worth noting that you will find that the package of yogurt has written on the package, not an expiration date, but either a best before date. If expired yogurt is kept at room temperature, or if the yogurt container is left exposed to air for long, then the yogurt will have spoilt beyond its expiration date.
If an opened yogurt has any fruit in it, that fruit may get spoiled by molds and yeasts past the expiration date of the yogurt. You need to inspect the opened yogurt carefully before eating such expired yogurts, so you do not consume any spoilt ones. After eating the yogurt, you should seal it tightly so you do not get infected with any harmful bacteria which may spoil the contents of yogurt. You can see that sealed yogurt packages stored in a refrigerator and freezer are better for preserving longer time compared to unopened ones, therefore, you need to take care with unsealed yogurts which might fail the food safety requirements.
|Simple Yogurt||2-3 weeks past the date|
|Greek Yogurt||14 to 24 days|
You should keep yogurt cans or containers on one of the shelves in your fridge, rather than on the doors, because the doors of your fridge experience many temperature fluctuations which may spoil the quality of the yogurt. As you can see, opened yogurts can have significantly shorter life spans than those without, whether you keep them in a freezer or refrigerator. When unopened and refrigerated, yogurt lasts for two or three weeks beyond the date on the container. Unopened yogurt can last in the refrigerator one to two weeks past its best-by date.
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If you are talking about a yogurts best-by date, then yogurt is safe to eat 2-3 weeks past the best-by date, provided that it is stored correctly in a refrigerator that is maintained at or below 40 degrees Fahrenheit. According to Eat By Date, a website which lists actual shelf lives for our favorite foods, as long as it is within a week or two of its shelf life, yogurt is still safe to consume. When you find an old container of yogurt while you are rooting around your refrigerator looking for something to eat, you need to be sure that it is still safe to eat.
Since yogurt can still become stale, even when it is still well into its expected shelf life, a lot of people have mistakenly consumed spoiled yogurt. People believe that since yogurt is formed by bacteria and fermentation, that it is fine to consume it if it has gone bad. The problem is yogurt is packed with good bacteria, but that does not magically make it immune from growing the bad ones, either. Because yogurt has the good bacteria in it already, it is not difficult for it to pick up harmful ones, which can cause food-borne illnesses and diarrhoea.
With the contaminated yogurt, like with any food-borne illness, your body will try to get rid of the bad food somehow. If you find yourself turning your nose up at the smell coming out of your yogurt, that means that food is not safe anymore to eat. Yogurt can cause food poisoning, but this is not a common phenomenon, and it typically happens only if the yogurt has been left at room temperature too long. Bacteria grow rapidly at temperatures ranging from 40-140 degrees F., and if yogurt has been left to sit outside for over 2 hours, there is a high probability that the yogurt is already infected with bacteria, and eating this yogurt, which is full of bacteria, could result in a lot of foodborne illnesses.
Consuming expired yogurt also increases the body temperature, and you may feel fever, which is the natural defence mechanism of the body, and is a sign that something is wrong with your body. What is more, if the yogurt has been left out in cold storage for a long time (like over 10 days), then it also can contain listeria bacteria. While a small change in temperature might seem less of an issue, yogurt is quite delicate, and frequent fluctuations will cause it to spoil faster.
If you would like your frozen yogurt to thaw more quickly, you can place the frozen yogurt into lukewarm water or the microwave, then eat it right away, before bad bacteria has the opportunity to ruin your yogurt. If you want to maintain optimal yogurt freshness so it is ready to use within the next few days, you can transfer yogurt into an airtight container and mark its expiration date before leaving it in the fridge. If your yogurt has not passed the best-by date, but it smells unusual or is otherwise off, throw it out instead of risking illness.
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If Greek yogurt is sealed correctly and kept at a proper temperature, you may be safe to eat the yogurt up to 14 to 24 days past the use-by date, but as the product gets older, it is flavor will get sourer. Now you know you can eat yogurt for up to two weeks after its best before date, you can help reduce food waste while enjoying a delicious breakfast. Experts agree: Packing dates are goddamned, and you will have between seven and 14 days to use your opened container of yogurt. This date is for when you will enjoy the peak yogurt quality and taste, but you can still consume yogurt that is past that date if properly stored.
Yogurt that has been stored well past the sell-by date may produce a number of troubling side effects, and eating expired yogurt may result in digestive discomfort. While regular yogurt will not keep for a year in the refrigerator, according to the U.S. Department of Agricultures FreshKeeper app, yogurt is usually safe to eat for up to two weeks after purchase. Because of your yogurts water content, yogurt that has been sitting around too long in your refrigerator is susceptible to mold...and it is going to make you sick.
Remember, plain, unsweetened yogurt is key, and the process works best if you put the yogurt on like a mask, letting the yogurt sit on your face for 5-10 minutes (or up to 30) before washing off.
How long after eating expired yogurt will you get sick?
As I said before, there are several symptoms that yogurt is ruined. However, if you don’t recognize them and drink poor-quality yogurt, you might have certain symptoms within a few or up to twenty-four hours of ingestion, including fever, nausea, vomiting, diarrhea, and stomach cramps.
Can you eat yogurt 3 weeks after expiration?
Most studies state that the maximum period is 3 to 10 days following expiry. According to a USDA food safety expert, yogurt should be consumed within 1-2 weeks after purchase.  FYI: According to USDA food safety experts, it is okay to remove mold and healthy bacteria from cheese, however they advise against eating bread that has mold on it.
When should you throw out Greek yogurt?
Greek yogurt may be safely consumed about a month after the sell-by date if it is properly packed and stored in a refrigerator at a suitable temperature, however, the flavor will grow sourer as it ages. The amount of liquid stuff that accumulates on the surface of the yogurt increases with time spent in the refrigerator.