How to Reheat Pizza (Skillet, Oven, Air Fryer and What to Skip)

Cold pizza is not the problem. The reheat is. Most people reach for the microwave, and that one choice is why leftover slices get a bad name.

A covered skillet beats it in about six minutes, using a pan you already own.

Quick answer: Put the cold slice in a dry skillet over medium-low heat for 4 minutes. Add half a teaspoon of water to an empty spot in the pan, cover it, and cook 2 minutes more. The bottom crisps, the steam melts the cheese, and the crust never goes limp. For four or more slices, use the oven instead.

Every Pizza Reheating Method, Compared

Here is how the common methods actually stack up. Times assume one or two slices straight from the fridge.

Method	Temperature	Time	Crust result	Effort
Skillet with lid	Medium-low	5 to 7 min	Crisp bottom, soft chew	Low, but you watch it
Oven, cold start	275°F to 375°F	20 to 30 min	Evenly crisp all over	Low, mostly waiting
Air fryer	350°F	3 to 4 min	Firm, slightly dry	Very low
Toaster oven	375°F	6 to 10 min	Crisp top, decent bottom	Very low
Grill	Medium, lid down	5 to 8 min	Charred, crackly	High
Microwave	50% power	45 to 60 sec	Limp, then tough	Lowest

The skillet wins on speed and texture together. The oven wins when you are feeding people. Everything else is a trade.

Why Cold Pizza Goes Soggy in the First Place

Understanding this makes every method below make sense.

When pizza bakes, the starch in the dough absorbs water and swells. Bakers call that gelatinization, and it starts around 150°F. It is what turns raw dough into a crust you can bite.

Then the slice cools. The starch molecules start to line back up into tight crystals, and as they do they squeeze out the water they were holding. That process is called starch retrogradation, and it is the real reason bread and pizza go stale. It is not simple drying out.

Here is the part that catches people. Retrogradation runs fastest at fridge temperature, just above freezing. So the pizza box in your fridge is doing the most damage it possibly can, short of nothing at all.

Meanwhile the water that the starch pushed out has to go somewhere. It sits on the surface of the crust and underneath the slice. That is the film of damp you feel when you pick up a cold piece.

So a cold slice hands you two problems at once. The crust is stale, and it is wet in exactly the wrong place. Good reheating fixes both, and it fixes them in the right order.

Heat above about 140°F breaks those starch crystals apart again, so the starch can take water back in and the crust turns pliable. King Arthur Baking explains this reversal in its own reheating guide. But you also have to drive off the free water sitting under the slice, and that only happens on a hot, dry surface.

That is why reheating from the bottom up works and reheating from all sides at once does not. The same logic applies to other leftovers with a crust, which is why our guide to reheating chicken wings leans on dry heat too.

The Skillet Method, Step by Step

This is the method to learn. It takes one pan, one lid and about six minutes.

Use a heavy pan if you have one. Cast iron holds steady heat and gives the crust a browner bottom than thin metal does. A good nonstick skillet works almost as well and is easier to clean. If you are not sure what you own, our explainer on the difference between a skillet and a frying pan clears it up.

1. Start with a dry, cold pan. No oil. Lay the slice flat and turn the burner to medium-low.
2. Let the bottom crisp for about 4 minutes. You will hear a faint sizzle as the trapped water leaves the crust. Lift a corner with a thin spatula and look for light browning.
3. Add half a teaspoon of water. Pour it into a bare patch of the pan, never on the slice.
4. Cover the pan and cook 2 more minutes. The water flashes to steam and melts the cheese from above.
5. Uncover and check. If the cheese is glossy and the bottom is firm, it is done. If the crust still feels soft, give it 1 more minute uncovered.

A wide spatula makes step two much easier, because you can peek without dragging the toppings around.

Why the Splash of Water Works

The lid turns your skillet into two cooking zones at once. Underneath, the pan surface stays well above boiling, so it keeps driving moisture out of the crust. Above the slice, the steam raises the air temperature fast and melts the cheese without a broiler.

Without the water, the cheese takes so long to melt that the crust burns first. Without the lid, the steam escapes and does nothing. You need both.

Half a teaspoon is the right amount, and America’s Test Kitchen calls for the same splash in its covered-skillet method. More water floods the pan and steams the crust soft, which is the exact result you are trying to avoid.

If your skillet has no matching lid, a sauté pan with a lid does the job, and so does any pot lid that roughly covers the pan. A sheet of foil pressed over the top works in a pinch.

The Cheese-Side-Down Variation

Flip the slice and cook it cheese-down in a nonstick pan for a minute before turning it back over. The cheese browns into a thin crisp sheet, like the edges of a good pan pizza.

It is a texture choice, not an upgrade. Try it once on a slice you were going to eat anyway.

Watch your stovetop. A heavy cast iron pan dragged across glass will scratch it. Lift, never slide. Our guide on protecting a glass-top stove from cast iron covers the rest.

Get a skillet that earns its place: the Lodge 10.25-inch cast iron skillet fits two slices and costs less than most weeknight takeout orders. Owner reviews most often praise the heat retention and flag the weight, which is the honest trade with cast iron.

The Oven Method for Four or More Slices

Once you are reheating half a pizza, the skillet stops making sense. The oven does every slice at the same time and needs no attention.

1. Put the slices on a rimmed baking sheet, straight on the metal.
2. Slide the sheet into a cold oven.
3. Set the oven to 375°F and start the timer when you turn it on.
4. Pull the pizza after about 20 minutes, or when the cheese bubbles at the edges.

Skipping the preheat is the whole trick. The slices warm up as the oven does, so the crust dries out gradually instead of scorching before the middle is warm.

America’s Test Kitchen goes further and uses a lower 275°F cold start for 25 to 30 minutes, with foil over the top. That version protects the toppings best. The higher 375°F version is faster and browns the crust more.

Should You Use Foil or a Pizza Stone?

Foil under the slices makes cleanup easy but softens the bottom, because moisture gets trapped between the foil and the crust. Bare metal gives you a better base. Put the foil over the top instead if the toppings look like they are drying.

A pizza stone does give the crispest bottom of any oven method. It also needs a long preheat, so it only pays off if the stone is already living in your oven. For most leftovers, the sheet pan is the sensible call.

If your oven is a compact apartment model, the same cold-start method still works, though you may need a shorter baking sheet to fit the rack. Our guide to baking in a small kitchen covers what fits where.

The Air Fryer Method

An air fryer is a small convection oven with an aggressive fan. That fan strips moisture off the crust fast, which is exactly what a limp slice needs.

1. Set the air fryer to 350°F.
2. Lay the slice flat in the basket with room around it.
3. Cook for 3 to 4 minutes.
4. Check at 3 minutes, because small baskets run hot.

Do not stack or overlap slices. Air has to reach every surface or you get one crisp slice and one steamed one. That is the same rule that makes frozen fries work in an air fryer.

The honest limit is texture. The fan dries the top of the cheese along with the crust, so thin-crust slices can come out a little brittle. Dampening the crust edge with wet fingers first helps, and so does a few drops of water in the bottom of the basket.

Cheese drips are the other cost. Reheating pizza is one of the messier jobs an air fryer does, so it pays to know how to clean an air fryer basket before the grease sets. If you are still shopping, our roundup of air fryers under $100 covers models that handle a full slice.

The Toaster Oven Method

A toaster oven splits the difference between the skillet and the full oven. It heats fast, it does two or three slices, and it does not warm your kitchen.

Set it to 375°F on the bake setting. Put the slice straight on the rack with a tray underneath to catch drips, and give it 6 to 10 minutes. Putting the slice on the rack rather than a pan lets the bottom heat directly, which is the whole point.

Skip the toast setting. It fires the top element hard and burns the cheese before the crust warms through.

This is often the best method in a small apartment, where running a full oven for two slices feels absurd. Our picks for small ovens and toaster ovens cover the sizes that suit tight counters, and these countertop organization ideas help you find a home for one. A countertop convection oven handles the job the same way.

Why the Microwave Ruins Pizza

The microwave is not a weak version of an oven. It heats by a completely different route, and that route is wrong for crust.

Microwaves excite water molecules, so they heat the wettest parts of the food first and fastest. In a slice of pizza, the wettest parts are the sauce, the cheese and that film of water sitting inside the stale crust. The crust does not brown, because browning needs dry surface heat that a microwave never supplies.

Worse, the water inside the crust turns to steam and has nowhere to go. It soaks the dough on its way out. You get a hot, floppy slice in 45 seconds.

Then it cools, and the second problem arrives. All that heating and fast cooling speeds the starch back into its crystal structure, so a microwaved slice goes from limp to leathery within a couple of minutes on the plate. Independent side-by-side comparisons rank the microwave last for exactly this reason.

If the Microwave Is Truly Your Only Option

Sometimes it is the office kitchen or nothing. Two things make it less bad.

• Drop the power to 50%. Lower power heats more gently and gives the middle time to catch up, so you avoid a molten center and a cold edge.
• Add a glass of water beside the plate. The water absorbs some of the energy and slows everything down, which reduces the rubbery finish.

Then eat it immediately. A microwaved slice has a very short window before it turns tough. If your microwave is due for replacement anyway, our guide to over-the-range microwaves covers the models worth the counter space they free up.

Reheating Pizza on a Grill

If the grill is already lit, it makes a very good pizza oven. The crust picks up char that no indoor method can match.

Set the burners to medium and let the grill come up to heat. Put the slices directly on the clean grate, close the lid, and check after 5 minutes. Thin crusts can scorch in under 4, so look early.

The catch is obvious. Nobody lights a charcoal grill for two slices of pizza. Treat this as a bonus method for the day after a cookout rather than a plan. Renters with a balcony should also check the local rules first, which our guide to balcony grilling safety lays out. A small portable grill for apartment living heats up fast enough to make this practical.

How Long Can Pizza Sit Out?

This is the part most reheating guides get wrong, so here is the actual rule.

Cooked food is unsafe after two hours between 40°F and 140°F. That range is what the USDA calls the danger zone, and bacteria multiply quickly inside it. If the room is above 90°F, the limit drops to one hour.

Pizza is not an exception. The cheese, the sauce and any meat topping are all perishable. A box left on the counter overnight has spent eight or more hours in the danger zone, and reheating it will not undo that. Some bacteria produce heat-stable toxins that survive a trip to 165°F.

So the pizza that sat out while you slept goes in the bin. It will look fine and smell fine. Spoilage bacteria and the bacteria that make you ill are different organisms, and the dangerous ones rarely announce themselves.

Situation	Safe to eat?	What to do
Out under 2 hours	Yes	Refrigerate or eat now
Out 2 to 4 hours at room temp	No	Throw it away
Out overnight	No	Throw it away
Out over 1 hour above 90°F	No	Throw it away
Refrigerated 1 to 4 days	Yes	Reheat to 165°F
Refrigerated 5+ days	No	Throw it away

Once it is in the fridge at 40°F or below, the USDA gives cooked leftovers three to four days. Reheat to an internal 165°F. The same clock governs other proteins, which is why chicken in the fridge gets the same short window.

Checking the Temperature

You cannot judge 165°F by eye. Slide an instant-read probe into the thickest part of the slice, not the pointed tip, and hold it in the middle of the dough. The ThermoPro TP19H reads in a few seconds and folds flat for a drawer.

Wipe and sanitize the probe afterwards. Our short guide on cleaning a meat thermometer covers doing it properly, and our thermometer roundup has other models if you also grill.

How to Store Leftover Pizza So It Reheats Well

Storage decides how good the reheat can be. A slice stored badly is already half ruined before it hits the pan.

The cardboard box is the worst container in your kitchen. It is porous, it lets the slices dry on top while the bottoms sweat, and it takes up a whole shelf. Get the pizza out of it.

Do this instead:

1. Let the slices cool for a few minutes, but get them refrigerated inside the two-hour window.
2. Stack them with parchment or wax paper between each layer. The paper stops the cheese from welding the slices together.
3. Seal the stack. A lidded container is better than plastic wrap, because it protects the toppings from getting squashed.
4. Store on a middle shelf, not the door. The door is the warmest part of the fridge.

Flat containers stack better than tall ones in a small fridge, which matters if you are working with a compact or under-counter model. These small kitchen cabinet organization ideas help if the containers themselves are the problem.

Freezing Slices

Freezing stops retrogradation almost completely, which is why frozen-then-reheated pizza often beats four-day-old fridge pizza.

Wrap each slice tightly, then bag the wrapped slices together. Use them within about three months for the best texture. Reheat straight from frozen in the oven at 375°F for roughly 15 minutes, or in a covered skillet on low for 8 to 10.

Do not thaw first. Thawing on the counter puts the slice right back in the danger zone, and it makes the crust wetter than it needs to be.

Reheating Problems and Quick Fixes

The problem	What caused it	The fix next time
Crust soft after skillet	Heat too low, or water added too early	Give the dry pan a full 4 minutes first
Bottom burnt, cheese cold	Heat too high, no lid	Medium-low plus the covered steam step
Toppings dried and hard	Oven too hot, or too long	Cold start, and tent with foil
Cheese not melted in air fryer	Basket crowded or too short a run	One slice at a time, check at 3 minutes
Slice tough within minutes	Microwaved	Use any dry-heat method instead
Greasy, soaked crust	Reheated on foil	Reheat on bare metal or a bare rack

Which Method Should You Use Tonight?

Count your slices, then pick.

• One or two slices, and you want the best result: skillet with a lid.
• Three or more slices, or you want it unattended: oven, cold start, 375°F.
• You are in a hurry and have the appliance: air fryer at 350°F for 3 to 4 minutes.
• Small kitchen, small appetite: toaster oven at 375°F on the rack.
• Office kitchen with nothing else: microwave at 50% power, and eat it fast.

The one rule that carries across all of them is heat the bottom first and last. Every good reheat in this guide is really the same move done with different equipment.

If leftovers are a regular part of how you eat, it is worth setting the kitchen up for them. Our guides to cookware sizes for cooking for one and easy meal prep for one person both start from the same idea. And when the skillet needs cleaning afterwards, cleaning stainless steel pans covers the burnt-cheese problem.

Related Guides

• How to Reheat Chicken Wings
• Best Pizza Stones for Home Ovens
• Best Air Fryers Under $100
• Best Small Ovens and Toaster Ovens for Small Kitchens
• Lodge Cast Iron Skillet Review
• Best Airtight Food Storage Containers
• How to Store Pots and Pans in a Small Kitchen

Frequently Asked Questions

What is the best way to reheat pizza?

A skillet with a lid. Put the cold slice in a dry pan over medium-low heat and let the bottom crisp for about four minutes. Then add half a teaspoon of water to a bare spot in the pan, cover it, and give it two more minutes. The steam melts the cheese while the pan keeps the crust crisp.

How long can pizza sit out before it is unsafe?

Two hours at normal room temperature, or one hour if the room is above 90°F. That is the USDA limit for any cooked food held between 40°F and 140°F. Pizza left on the counter overnight should be thrown away, even if it looks and smells fine. Bacteria that cause illness often leave no clue.

Why does reheated pizza get soggy?

Two things happen in the fridge. The crust starch recrystallizes and pushes out water, and that water collects under the slice. When you heat it too fast, that trapped moisture turns to steam under the crust and cannot escape. Heating from the bottom on a hot dry surface drives the water off instead.

What temperature should I reheat pizza to?

The USDA says reheat leftovers to an internal temperature of 165°F. Check the thickest part of the slice with an instant-read thermometer, not the tip. Most methods here get there easily. The skillet is the one to watch, so give it the full covered steam step rather than pulling it early.

Can you reheat pizza in an air fryer?

Yes, and it is the fastest method after the skillet. Set the air fryer to 350°F and give a slice three to four minutes. Lay it flat in the basket with space around it, and do not stack slices. The fan pulls moisture off the surface fast, so the crust firms up while the cheese melts.

How many days is leftover pizza good for?

Three to four days in the fridge at 40°F or below, which is the USDA guideline for cooked leftovers. Wrap the slices or put them in a sealed container rather than leaving the box open. For longer storage, freeze the slices with parchment between them and use them within about three months.