Can I Put Pizza Box in the Oven?

Many pizza lovers have been tempted to reheat their pizza directly in its original box, but is it a safe practice?

In this post, we’ll delve into the hazards of placing a pizza box in the oven, and offer safer, tastier alternatives to enjoy your leftover pizza.

The Risks of Heating a Pizza Box in the Oven

Heating a pizza box in the oven might seem convenient, but it’s important to recognize the following dangers:

  • Fire Hazard: Cardboard is a flammable material. It can easily catch fire at high temperatures, posing a serious risk.
  • Toxic Chemicals: Pizza boxes contain inks, adhesives, and other chemicals which can release toxic fumes when heated.
  • Food Contamination: Reheating your pizza in its box might lead to contamination from inks and chemicals seeping into your food.

What Temperature Does Cardboard Ignite?

It’s essential to note the ignition point of cardboard to understand why placing it in an oven is unsafe. The table below displays the average ignition point compared to common oven temperatures.

Material Ignition Point Common Oven Temperature
Cardboard Around 427°F (220°C) Generally between 325°F (163°C) to 450°F (232°C)

Given these figures, it’s not advisable to heat a pizza box in a standard oven.

How Can You Reheat Pizza Safely and Deliciously?

If you’re looking to enjoy leftover pizza that’s as good as when it was freshly delivered, consider these alternatives:

  1. Pizza Stone or Pan:
    Preheat your oven with a pizza stone or pan inside. Once hot, place the pizza directly onto the stone or pan. This will help crisp the crust.
  2. Skillet:
    For a crispy bottom, reheat slices in a skillet on medium heat for a few minutes. Cover with a lid to melt the cheese.
  3. Toaster Oven:
    Toaster ovens are a great alternative as they reheat pizza quickly and evenly.
  4. Oven:
    Use an oven-safe tray or aluminum foil to place your pizza in the oven. This avoids any risk associated with cardboard.

Reheating Pizza in Microwaves – Yay or Nay?

While microwaves offer a quick solution, they’re notorious for making pizza soggy. However, here’s a tip to improve the outcome:

Place a glass of water alongside your pizza slice in the microwave. This will absorb some of the microwaves and help keep the crust crispier.

Frequently Asked Questions For Can I Put Pizza Box In The Oven

Is It Safe To Put Pizza Box In Oven?

A pizza box can pose a fire risk if exposed to high temperatures in an oven, so it’s generally considered unsafe.

At What Temperature Will Pizza Box Ignite?

A pizza box may ignite at temperatures around 400-450°F (204-232°C), depending on the box material and oven conditions.

How Can I Reheat Pizza Without The Box?

For best results, reheat pizza on a preheated baking sheet, pizza stone, or in a skillet over medium heat.

Can Cardboard Go In The Oven At Low Temperatures?

Oven use of cardboard is not recommended, even at low temperatures, as it can be a fire hazard and potentially release harmful chemicals.


Putting a pizza box in the oven is not recommended due to the potential fire hazard and health risks from chemicals and inks.

Fortunately, there are several safer methods to reheat your pizza that can maintain or even enhance its flavor. Remember, safety in the kitchen should always be your top priority.

Leave a Comment