Can you eat 3-day-old pizza that is not refrigerated?

That leftover pizza slice from the other night always leaves us making drool, right? Well, it is mainly because of the oxidization of the tomato sauce spread over the pizza bases. However, there are specific guidelines one should follow when it comes to consuming old pizzas; in this article, we will discuss if it is safe to eat 3-day-old pizza.

Can you eat 3-day-old pizza that is not refrigerated?

One should refrain from eating 3-day-old pizza as the U.S. Department of Agriculture (USDA) states it is unsafe to eat if it has been kept at room temperature for more than 2 hours. The rule applies to all pizzas, including vegan, vegetarian and non-vegetarian. According to USDA, a temperature of 41-135 degrees Fahrenheit or 5-57 degrees Celcius is the danger zone, and food items kept outside this should be avoided. This means 3-day-old pizza is unsafe to consume and might infect bacteria and fungi.

Leaving your pizza outside at room temperature increases its risk of being contaminated by food-borne illnesses. Eating food items infected with bacteria can lead to serious health issues like food poisoning, dysentery, diarrhea, etc. The initial symptoms of problems like food poisoning and diarrhea include nausea, vomiting, upset stomach, and stomach ache, which can take up to a few hours or days to show.

 Can you eat 3-day-old pizza refrigerated?

the image depicts girls having 3 day old pizza

As per USDA, if the pizza has been kept in a refrigerator with a temperature less than 40 degrees Fahrenheit (inside the danger zone) is safe for consumption for up to four days. However, keeping perishable food loaded with processed cheese items for three days in the fridge is something we wouldn’t recommend. Consuming pizzas made from fresh ingredients is always safe to avoid airborne illnesses.

Frequently Asked Questions (FAQs)

1. How long can a pizza last without a fridge?

U.S. Department of Agriculture suggests not letting cooked food, including pizzas, sit outside the fridge for more than 2 hours. Therefore, pizzas are good to consume within 2 hours of taking them out.

2. Can I eat pizza that’s been left out all night?

It would be best if you didn’t eat pizza left out all night as such food is prone to airborne illnesses like diarrhea, food poisoning, indigestion, and much more.

3. How long is leftover pizza good for?

If you are packing and storing the pizza correctly in the fridge, it is safe to be consumed for up to four days. However, consuming the pizza within two hours is good if it has been kept at room temperature.

4. How can you tell if pizza is bad?

Once the pizza gets stale and unconsumable, it will have a rough and dry texture. You can also make out the foul odor and the mold growing on it.

5. Is it okay to eat 2-day-old pizza?

It is okay to eat 2-day-old pizza as long as it is properly packed and refrigerated under an optimal temperature. Avoid having old pizza kept outside the refrigerator for more than 2 hours.


While it may get tempting to have those leftover slices of pizza, it is essential to understand the importance of having food made from fresh ingredients. We hope this article helped our readers understand the concept of perishable food items like pizza. Stay tuned for more such food-related content!

Also Read: Can you freeze Tortilla chips?

Shaleen Ashish
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