How to Reheat a Calzone

You ordered the big calzone. You ate half. And now there’s a beautiful, golden, cheese-stuffed pocket sitting in your fridge, quietly daring you to reheat it without turning it into a chewy hockey puck. I’ve been there more times than I’d like to admit.

Here’s the thing nobody tells you: how you reheat a calzone matters way more than how you reheated last night’s pizza. A calzone is thicker, denser, and fully sealed, so the heat has to travel through a wall of dough to reach a molten cheese core. Rush it and you get a cold middle with a scorched shell. Nuke it and you get something that tastes like regret.

So I tested the four methods worth using, ranked them, and called out the one that will absolutely ruin your leftovers. Let’s get into it.

The Quick Verdict

If you only remember one line: the oven is the best way to reheat a calzone, the air fryer is the fastest, and the microwave is a trap. The reason comes down to dry heat. An oven (or air fryer, or toaster oven) recreates the environment your calzone was baked in, so the crust re-crisps while the inside warms through. A microwave does the opposite — it pumps steam into the dough and softens everything you wanted crunchy.

Here’s how all five stacked up side by side. This is the comparison the other guides somehow forget to include.

Want the same crisp-it-back-up logic for regular slices? I broke that down in my guide to reheat pizza so it’s crispy, not soggy — the principles overlap, but calzones need a little more patience.

Oven: The Gold Standard

The oven won my taste test by a mile. The crust crisped up, the cheese went gooey and stringy again, and the filling warmed evenly all the way to the center. If you have 15 minutes, this is the only method you need.

How to do it

Preheat your oven to 375°F and line a baking sheet with foil or parchment. Set the calzone in the middle of the sheet and bake for 12 to 18 minutes, depending on size, until the outside is crisp and the center is hot.

If your calzone is on the larger side and you’re worried the shell will brown before the middle catches up, tent it loosely with foil for the first half, then pull the foil for the last few minutes to crisp the top. A baking steel or stone makes the bottom even better — if you’ve ever wondered whether one beats the other, my pizza stone vs baking steel breakdown settles it.

One thing I learned the hard way: don’t skip the preheat. A cold oven slowly bakes moisture out of the dough before the crust ever sets, and you end up with the leathery texture you were trying to avoid. (Dialing in the best oven settings for pizza at home pays off here too.)

Air Fryer: Fastest Route to Crispy

If the oven is the gold standard, the air fryer is the speed demon that nearly stole the crown. The convection fan blasts hot air around the whole calzone, so the crust crisps in a fraction of the time — no 15-minute preheat required.

How to do it

Set the air fryer to 350°F and place the calzone in the basket with a little space around it for airflow. Heat for 6 to 9 minutes, flipping halfway if it’s a thick one. Check the center before serving — air fryers run hot, and the shell can hit gorgeous before the core is ready.

The only catch is capacity: most baskets only fit one or two pieces. For a crowd, go oven. If you’re already an air fryer convert, you’ll recognize the technique from my air fryer pizza walkthrough, and the same timing instincts that work for air fryer timing on a frozen pizza apply to a frozen calzone too.

Skillet: Crispy Bottom, Tricky Middle

The stovetop is the method people swear by online, and I get the appeal — you can get a shatteringly crisp bottom crust with a teaspoon of oil and a hot pan. The problem is the inside. By the time the center warms through, the base wants to scorch.

How to do it

Heat a teaspoon of olive oil or butter in a cast iron or non-stick pan over medium heat. Add the calzone, cover with a lid, and cook for about 3 minutes. Flip, then add a splash of water (about a tablespoon) and re-cover immediately — that burst of steam helps melt the cheese without drowning the crust. Cook until the middle is hot, roughly another 3 to 5 minutes.

The covered-pan-with-steam trick is the same move that gives cast iron a crispy crust on a fresh pie. Just keep the heat at medium — crank it and you’ll char the bottom while the filling’s still cold, which is exactly why a base won’t crisp properly when the timing’s off.

Toaster Oven: Best for One or Two

The toaster oven is the unsung hero here. It delivers nearly identical results to the full oven — crispy shell, melty middle — without heating up your entire kitchen for a single leftover. For one or two pieces, it’s honestly the smart move.

How to do it

Set the toaster oven to 350°F, place the calzone on the tray (lined with foil for easy cleanup), and heat for 8 to 12 minutes. Keep an eye on it — toaster ovens sit closer to the heating element, so the top can brown faster than you’d expect. If it’s getting dark before the center is hot, tent a scrap of foil over the top.

The Microwave: The One That Wrecks It

And now, the villain of our story. I tested the microwave so you can trust me when I say: it turns a crispy calzone into a chewy stress ball. The crust goes soft, then weirdly rubbery, and the cheese tends to ooze out onto the plate like it’s trying to escape.

There’s real science behind the disappointment. A microwave heats by exciting water molecules, which floods the dough with steam instead of dry heat. With no browning reaction and a rush of trapped moisture, the starches recrystallize as the bread cools — a process called retrogradation — and you’re left with tough, gummy dough. It’s the same reason day-old bread never softens up in there.

If you absolutely must

Truly no other option? Put the calzone on a microwave-safe plate, cover it with a slightly damp paper towel, and heat at 50% power for 60 to 90 seconds. The lower power heats more gently and the damp towel buffers some of the moisture chaos. Per USDA food-safety guidance, microwaves have cold spots, so check the center in a couple of places before you dig in. It still won’t be crispy — but it’ll be edible.

How to Reheat a Calzone From Frozen

Good news: you can reheat a frozen calzone without thawing first, and the oven handles it beautifully. The USDA confirms it’s safe to reheat frozen leftovers straight from the freezer — it just takes longer.

Preheat the oven to 375°F, set the frozen calzone on a lined sheet, and bake for 25 to 35 minutes, tenting with foil for the first 20 so the shell doesn’t race ahead of the icy middle. Pull the foil for the final stretch to crisp it up. An air fryer works too — 350°F for around 12 to 15 minutes, flipping once.

Storing Leftovers So They Reheat Well

Half the battle is won before reheating even starts. Let your calzone cool, then wrap it tightly in foil or drop it in an airtight container and refrigerate. According to FoodSafety.gov, cooked leftovers keep 3 to 4 days in the fridge — the same window I cover in how long pizza leftovers keep in the fridge.

For longer storage, freeze them. Wrap each calzone individually, then bag them so they don’t fuse into one giant calzone brick. The wrap-tight, freeze-flat approach is the same logic behind freezing pizza dough the right way — squeeze out air, label the date, done.

A Quick Word on Food Safety

This part isn’t glamorous, but it matters — especially with meat-filled calzones. Reheat leftovers to an internal temperature of 165°F, as listed on the FoodSafety.gov temperature chart. “Hot in the middle” by feel is a guess; a $10 instant-read thermometer makes it a fact.

Don’t leave a cooked calzone sitting at room temperature for more than two hours, and when in doubt, throw it out. A wasted calzone stings, but it beats a wasted weekend.

Frequently Asked Questions

Bringing It Home

A leftover calzone doesn’t have to be a downgrade. Reheat it with dry heat — oven first, air fryer when you’re in a hurry — and you’ll get that fresh-from-the-pizzeria crunch back. Skip the microwave unless you genuinely have no other option, and even then, you now know how to soften the blow.

Bookmark the cheat sheet, grab a thermometer for the meaty ones, and your day-two calzone might just taste better than day one. (Mine usually does. Don’t tell the first slice.)

New to the fold? Try our easy cheese calzone, go bold with a meatball calzone, or rescue extra dough by turning leftover pizza dough into calzones.