How Long Can Pizza Sit Out?
Pizza should not sit out more than 2 hours at room temperature, or 1 hour above 90 F. Overnight pizza should be thrown away.
Pizza should not sit out for more than 2 hours at room temperature, or more than 1 hour if the temperature is above 90 F. If pizza sat out overnight, throw it away. Cheese, sauce, and toppings make pizza a perishable food, even when it seems dry or still looks normal.
Pizza sit-out timing
Out 2 hours or less
Eat or refrigerate promptly
Within normal room-temperature window
Out more than 2 hours
Discard
Perishable takeout rule
Above 90 F for more than 1 hour
Discard
Hot weather shortens the limit
Left out overnight
Discard
Not worth the risk
Plain cheese pizza
Use same rule
Cheese and sauce are still perishable
Pizza is still a perishable leftover
The fact that pizza is baked does not make it shelf-stable. Once it cools and sits on the counter, it follows the same consumer food-safety timing as other perishable takeout foods.
Store leftover pizza
- 1Put leftover slices in the refrigerator within 2 hours.
- 2Use the 1-hour rule in hot weather or a hot car.
- 3Use shallow containers, foil, or sealed bags instead of leaving slices in an open box.
- 4Discard pizza that sat out beyond the safe window.
- 5Reheat refrigerated pizza thoroughly before eating if desired.
FAQ
Is pizza safe to eat if it sat out overnight?
No. Pizza left out overnight should be discarded because cheese, sauce, and toppings make it a perishable food under the 2-hour rule.
Does plain cheese pizza follow a different rule?
No for practical consumer safety. Plain cheese pizza is still perishable and should not sit out more than 2 hours at room temperature.
Can I refrigerate pizza after it sat out too long?
No. Refrigerating it after the safe room-temperature window has passed does not make it safe again.
Sources & method
We reviewed these references while writing this answer. Figures are estimates — confirm safety-critical work with a professional. Last updated June 7, 2026.
- Safe Handling of Take-Out FoodsUSDA FSIS · fsis.usda.govSupports discarding perishable takeout foods left at room temperature longer than 2 hours or 1 hour above 90 F.
- Are You Storing Food Safely?U.S. Food and Drug Administration · fda.govSupports the general 2-hour room-temperature limit for foods requiring refrigeration.