Can you get sick from eating expired peanut butter?

In this short article, we will provide an answer to the question “Can you get sick from eating expired peanut butter?” and the information on storing peanut butter.

Can you get sick from eating expired peanut butter?

It is possible to become ill after consuming peanut butter that has been sitting out for a long time and exhibits signs of deterioration. As long as the peanut butter is maintained properly and shows no indications of deterioration, it will not make you sick. 

Even though peanut butter’s flavor changes and its lipids oxidize over time, consuming expired peanut butter provides no health risk as long as there is no sign of degradation in the product.

Is Eating Peanut Butter That Has Been Out of Date Dangerous?


This probable carcinogen is found in peanuts and peanut butter, and it can be present during storage or even before the peanuts are harvested, depending on the circumstances. The mold Aspergillus flavus is responsible for the production of aflatoxin. The Food and Drug Administration regulates the amount of aflatoxin present in peanut butter products (FDA). The lowest calorie peanut butter is those made by well-known brands. Because the amount of aflatoxin in peanut butter rises over time, it is vital to consume it or discard it before the expiration date is reached. Aflatoxin exposure can cause damage to the human liver, which can result in cancer.


It is debatable whether or not the peanut butter has been contaminated with salmonella. It is usual for salmonella to thrive in fatty foods such as peanut butter, which are often associated with the consumption of eggs. Once it’s established, it can last for several months. It is to their credit that the majority of large peanut butter brands use roasted peanuts in their recipes because doing so kills salmonella. There is no method to remove salmonella from peanut butter without compromising the product’s quality after it has been introduced into the mix. Even if peanut butter has passed its expiration date, it can still be a source of salmonella contamination, therefore it is recommended to use it as soon as possible after purchase.


Nutrient Peanuts contain a phytonutrient called resveratrol, which is safe for human ingestion. It possesses antifungal and antimicrobial properties that help to treat infections in our system. Several studies in rodents have demonstrated the beneficial effects of resveratrol, and it is thought that the same is true for humans, albeit no human trials have been undertaken to corroborate this. When it comes to peanut butter, the flavor and texture deteriorate over time, so it’s preferable to consume it before it goes bad.


Peanut butter’s high-fat content indicates that it will get rancid once a certain amount of time has passed. Those who ingest rancid peanut butter may get nausea, diarrhea, and vomiting as a result of their consumption. Any jars of peanut butter should be consumed within a month after their expiration date, according to standard practice.

What are some of the best ways to preserve peanut butter fresh and uncontaminated?

  • When storing peanut butter, it is best to keep it in a cold, dry, and dark location away from direct sunlight. If your pantry is cold and dry, you can store peanut butter in a secluded spot away from direct sunshine or heat without the risk of spoiling the product.
  • Open jars of peanut butter should be refrigerated to ensure that the quality and freshness of the product are maintained for an extended time.
  • Maintain the temperature of homemade peanut butter in the refrigerator at or below 40 degrees Fahrenheit in an airtight container at all times.
  • The storage of peanut butter should not be done in a humid environment.
  • Make sure to carefully close the jar after scooping out the necessary amount of peanut butter to further decrease the amount of oxygen that comes into contact with the peanut butter.
  • It is never a good idea to scoop peanut butter out of a container with a wet or contaminated spoon.
  • To scoop peanut butter from the jar, you’ll need utensils that are dry and clean.

The liquid in peanut butter is made up of what substance?

Peanut oil can also be found at room temperature in the form of a liquid (peanut butter). As the peanut butter settles on top, the oil rises to the top. What happens if the greasy pool in your peanut butter isn’t there anymore? Cottonseed, rapeseed, soybean, and palm oils are all common oils that are used to increase the nutritional content of food.


In this short article, we provided an answer to the question “Can you get sick from eating expired peanut butter?” and the information on storing peanut butter.


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