The Way You're Storing Leftover Pizza Is Actually Dangerous (2024)

Let's talk about the temperature danger zone.

By Gabby Romero
The Way You're Storing Leftover Pizza Is Actually Dangerous (1)

As fun as it is to have a pizza party, it always ends with the same dilemma: figuring out where to store the leftovers. Finding enough room to fit a pizza box is a near impossible task. So if you’ve ever given up and kept your leftover pizza on your kitchen counter, you’re not alone.

Health officials often warn against storing food at room temperature for prolonged periods of time because of the risk of food-borne illness. But there are many foods that can hang out at room temperature without harboring germs.

Bread and tomatoes, for example, shouldn’t be refrigerated anyway—and that’s two thirds of a pizza, right? So can we get away with keeping our pizza on the counter and spare ourselves from playing a game of refrigerator Tetris?

We’re breaking down everything you need to know about storing pizza and whether your pie can stay at room temperature.

Is It Safe To Leave Leftover Pizza Out?

The Way You're Storing Leftover Pizza Is Actually Dangerous (3)

Sorry to break the news, but pizza should absolutely not be stored at room temperature overnight. In fact, it shouldn’t even spend more than a few hours on the counter. The temperature range of 40-140°F is widely known as the temperature danger zone—a.k.a. the climate where bacteria can thrive.

The USDA reports that bacteria can start taking over your leftovers in as little as 20 minutes. And after two hours, it's deemed unsafe to eat left-out pizza at all. In mild to moderate cases, getting food-borne illnesses from room temperature food means stomach pain, diarrhea, vomiting, and fever. But more serious cases involve hospitalization and even death, like this 2008 case involving leftover pasta.

There are certain ingredients that have a much higher risk factor when it comes to bacteria growth, and it mostly comes down to the level of moisture and protein present. Baked goods like bread, cakes, and cookies all have relatively low protein and moisture levels (and are often preserved with plenty of fat and sugar), which means they can safely sit out on the counter for a few days.

Pizza, on the other hand, has plenty of protein and moisture that can invite harmful bacteria. The dough itself doesn’t present much danger, but the sauce, cheese, and toppings definitely do. Cheese, alongside milk and other dairy-based products, is one of the most at-risk ingredients. The FDA notes that the high levels of protein and moisture in cheese make it especially vulnerable for bacterial growth.

The same goes for the sauce and certain toppings. Cooked vegetables (like peppers. mushrooms, and tomato-based pizza sauces) contain a lot of natural liquid which can cause bacteria like Salmonella and E. coli to grow.

How To Properly Store Leftover Pizza

The Way You're Storing Leftover Pizza Is Actually Dangerous (5)

Just because you can’t keep your pizza box on the counter overnight doesn’t mean you need to show the entire thing into your refrigerator. Actually, it’s recommended that you take your slices out of the box before storing them.

The climate of your fridge, aside from being cold, is also really humid. So, if stored in an open container like a pizza box, your slices will gradually absorb some of the ambient moisture. Not only does that make your crust sad and soggy, it also infuses your leftovers with whatever other smells are floating around in the fridge. Yuck!

So your safest bet for storing pizza is transferring your slices into an airtight container or resealable plastic bag. Make sure to label your container with the day you first ate it, then keep it in the refrigerator for no longer than four days. And, according to the USDA, you can pop your leftovers in the freezer and they’ll stay good for up to two months.

The Way You're Storing Leftover Pizza Is Actually Dangerous (7)

Gabby Romero

Associate Editor

Expertise: TikTok Trends, Drinks, Pop Culture

Education: B.A. in Journalism and B.S. in Communications from NYU, Culinary Arts degree from The Institute of Culinary Education

About Me: As an associate editor at Delish, Gabby works on everything from features to recipes to content on our social media channels. Before joining the team, she wrote for StarChefs Rising Stars Magazine, Mashed, and Food52. When she’s not developing co*cktail recipes, she’s making co*cktail-inspired dishes like Dirty Martini Pasta and Aperol Spritz Trifle. Her features cover online trends like the Millennial Shopping Cart, rank everything from hard seltzers to frozen French fries, and answer some of your most pressing food safety questions. You can also find her posting content on Delish’s TikTok, including her about cooking like influencer Nara Smith that garnered over 3M combined views. She loves eating spicy food, collecting cookbooks, and adding a mountain of Parmesan to any dish she can.

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The Way You're Storing Leftover Pizza Is Actually Dangerous (2024)

FAQs

The Way You're Storing Leftover Pizza Is Actually Dangerous? ›

Sorry to break the news, but pizza should absolutely not be stored at room temperature overnight. In fact, it shouldn't even spend more than a few hours on the counter. The temperature range of 40-140°F is widely known as the temperature danger zone—a.k.a. the climate where bacteria can thrive.

Is pizza left out overnight ok to eat? ›

You may have gotten away with eating pizza that sat out in the past without consequences, but that doesn't mean you'll be unscathed next time. So, if it sat out overnight, toss that pizza in the trash or compost bin, and spare yourself the risk of foodborne illness.

How long does it take for leftover pizza to go bad in the fridge? ›

In general, she says all cooked foods and leftovers can be kept in the fridge for no more than three or four days. After that, they could start to spoil and contain bacteria. Jeremy White, editor-in-chief of Pizza Today, shares the same sentiments as Carothers. In fact, he says four days could be pushing it.

How safe is it to eat leftover pizza? ›

The USDA's food safety guidelines state that leftover pizza will last in the refrigerator for up to four days — provided the two-hour rule was followed beforehand. To properly refrigerate your leftover pizza, wrap it tightly in foil or plastic wrap or store it in an airtight container.

Is 2 day old pizza safe to eat? ›

According to the USDA, if the pizza has been refrigerated at a temperature below 40 degrees, its only safe to eat for up to 4 days. The USDA says that after 4 days, you run the risk of getting a food-borne illness, such as Salmonella, norovirus, or other diseases with horrifying Latin names.

How to store leftover pizza? ›

The best way is to stack and wrap: Place a single layer of slices on a dinner plate, top with a layer of wax, freezer, foil or parchment paper. Keep stacking, alternating pizza and paper, until all the pizza's on the plate. Wrap the whole thing tightly up in plastic wrap, and place it in the refrigerator. That's it!

Is pasta still good if you leave it out overnight? ›

Anything perishable should go into the fridge within two hours. If perishables are sitting in temperatures of more than 90 degrees, the time limit to get them into the fridge goes down to one hour. Examples include leftovers, boiled or fried rice, pasta salad, cut fruit, and poultry, meat and seafood.

How to tell if pizza has gone bad? ›

What are signs that an uneaten slice has gone bad or spoiled? Since you are talking about pizza, a luxury food, you should toss it in after a few days in the fridge. If you see the pepperoni or other meats sweating or see some tell-tale signs of mold, toss it. If it is dry and hard as a rock, toss it.

Is it okay to eat cold pizza from the fridge? ›

In short, if you're craving a piece of cold pizza, just make sure you're grabbing it from the fridge or freezer — not your kitchen counter or the end table in your hotel room. Your taste buds, and stomach, will thank you later.

Can I eat pizza that's been in the fridge for a week? ›

It's not recommended to eat pizza that has been stored in the fridge for more than four days. If you choose to do so, it's important to check for signs of spoilage and discard any slices with an off-putting color or odor. If you want to extend the shelf life of pizza beyond four days, freezing is the best option.

Is cold pizza healthier? ›

Whether it's cold, hot, or preheated, pizzas should be enjoyed in the way that you prefer. These pies are delicious, filling, and contain everything that you need in a meal. Just remember to always follow the standard procedure to avoid foodborne illnesses.

Is it safe to eat food that was left out overnight? ›

Eating food left out overnight is a food safety no-no. No exceptions. So, please make your personal pledge today to NEVER eat it. Even if you're in the habit of doing this and haven't gotten sick yet, it's better to be safe than to take the risk and become terribly ill or lose your life to foodborne illness.

Why is cold pizza so good? ›

This is because pizza can keep its structure better in the cold. The cold also prevents your cheese from melting in your sauce and crust, keeping each layer of the pie perfectly distinct.

Is it okay to eat pizza that was left out all night? ›

The USDA reports that bacteria can start taking over your leftovers in as little as 20 minutes. And after two hours, it's deemed unsafe to eat left-out pizza at all. In mild to moderate cases, getting food-borne illnesses from room temperature food means stomach pain, diarrhea, vomiting, and fever.

Can 2 years eat pizza? ›

24 months old +: At this age, many toddlers are able to handle a whole slice of pizza with toppings. If any toppings look too challenging for the child simply peel them off and suggest those be eaten separately.

Is it safe to reheat pizza? ›

It's safe to reheat pizza the next day, as long as you're heating to a temperature that would kill any bacteria off. An oven, air fryer, frying pan, and microwave are all viable options, but some methods work better than others. So don't just whack your pizza in there and hope for the best!

Is food left out overnight safe to eat? ›

Eating food left out overnight is a food safety no-no. No exceptions. So, please make your personal pledge today to NEVER eat it. Even if you're in the habit of doing this and haven't gotten sick yet, it's better to be safe than to take the risk and become terribly ill or lose your life to foodborne illness.

Can you eat cheese left out overnight? ›

The type of cheese is the biggest consideration - hard cheese will last longer and is less likely to pose a health risk, while soft and fresh cheeses should remain refrigerated and only be left out for two hours at most. No matter the cheese, leaving it out for more than two hours may change the quality and taste.

Can I use pizza dough that was left out overnight? ›

If you are planning to use your pizza dough soon, you can store it at room temperature for about four hours. Any longer than that and you will want to keep it in the fridge to avoid over-fermentation.

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