We’ve all been there. You open your fridge and spot that yogurt tub with great intentions.
But before you know it, that expiration date has come and gone, and the yogurt is now a science experiment in a jar.
So, does yogurt go bad? And if so, what can you do to prevent it? Let’s take a closer look at this dairy product to find out.
Table of Contents
- Does Yogurt Go Bad?
- How to Know if Yogurt is Bad?
- Does Yogurt Go Bad in the Fridge?
- Does Yogurt Go Bad if It Gets Warm?
- What Does Spoiled Yogurt Look Like?
- What Happens if You Eat Spoiled Yogurt?
- How to Store Yogurt?
- How Do You Store Yogurt Long Term?
- What Should Be the Yogurt Storage Temperature?
- Conclusion:
- Crystal Hafley
Does Yogurt Go Bad?
Yes, yogurt can go bad. It will typically last for about 2-3 weeks in the fridge, but it’s important to check the expiration date to be sure.
If you see any signs that your yogurt has gone bad, it’s suitable to discard it.
Yogurt contaminated with bacteria can make you sick, so it’s important to be careful when handling and storing this food.

How to Know if Yogurt is Bad?
There are a few signs that yogurt may be bad. It is not good if the yogurt is lumpy or has a watery consistency.
It is also bad if mold is on the top of the yogurt. Finally, if the yogurt has an off-odor or rancid smell, it is probably bad and should not be consumed.
Does Yogurt Go Bad in the Fridge?
Yes, yogurt can go bad in the fridge.
The expiration date on the yogurt carton guides how long the yogurt will be good for after it has been opened.
However, if there is any visible mold on the surface of the yogurt, do not eat it.
In Addition
Does Yogurt Go Bad if It Gets Warm?
Yes, if a container of yogurt is left out at room temperature, harmful bacteria will start to grow, and the yogurt will become sour and thick.
Also, high temperatures can cause the yeast and bacterial culture to break down that ferment the yogurt. This will result in a lumpy and thick yogurt.
What Does Spoiled Yogurt Look Like?
Spoiled yogurt will usually have large chunks of mold growing on it. You will also see unusual lumps or pieces in the yogurt.
The yogurt will also smell rank and may have a sour or acidic smell. If you see any of these signs, do not eat the yogurt. Discard it instead.
What Happens if You Eat Spoiled Yogurt?
If you eat spoiled yogurt, you may experience some stomach upset. This is because spoiled yogurt contains bacteria that can cause food poisoning.
Symptoms of food poisoning include nausea, vomiting, and diarrhea. In severe cases, food poisoning can lead to dehydration and even death.
Therefore, it’s important to be careful with your yogurt and ensure it’s not expired or past its “use by” date.
How to Store Yogurt?
Here are the steps to store the yogurt.
- Firstly, ensure the yogurt is covered so it doesn’t come into contact with air. This will help prevent bacteria from growing on the surface of the yogurt.
- Secondly, keep the yogurt in a cool, dark place like the fridge at optimum temperature (40 degrees F or below). Warm temperatures can cause bacteria to grow more quickly, so it’s important to keep the yogurt as cool as possible.
- Finally, eat the yogurt within a week or two of buying it for maximum quality.
How Do You Store Yogurt Long Term?
The optimum way to store yogurt is to freeze it. If you want to store yogurt for a long period, follow the steps below:
- Freeze yogurt in airtight containers or heavy-duty freezer bags.
- Remove as much air as possible before sealing the container or bag.
- Label the container or bag with the date you froze the yogurt.
- Store in the coldest part of your freezer.
What Should Be the Yogurt Storage Temperature?
The ideal storage temperature for yogurt is between 35 and 40 degrees Fahrenheit. The yogurt will be fresh for up to 2 weeks at this temperature.
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Conclusion:
The conclusion is that if you see any black molds or thick chunks in the yogurt, it is bad and should be discarded.
Moreover, if you want to use yogurt for a good time, keep it in the fridge at a temperature of around 40 degrees Fahrenheit.

Crystal Hafley is a dedicated writer and content creator for WorstBrands, where she specializes in writing insightful reviews about kitchen appliances and fashion products.
With her expertise, Crystal provides readers with accurate and reliable information to help them make informed decisions about the brands and products they use every day. When she's not researching or writing, Crystal enjoys cooking and exploring the latest fashion trends.