Can I leave food out overnight?

Concerns & risks

You were trying to enjoy a lazy morning, but you found last night's pizza still sitting on the counter, and you're tempted to just eat it.

Everyday mishaps add up.

Causes & evidence

Perishable food left out more than 2 hours (1 hour above 90°F) should be thrown out. See food storage times.

What to do

1. Toss perishables left out over 2 hours.
2. Don't rely on smell.
3. Refrigerate promptly next time.

Common mistakes: Common mistakes: thinking that reheating makes food safe again. Some bacteria make toxins that heat doesn't destroy. The 2-hour rule applies to perishable foods like meat, cheese, cooked rice and cut fruit; in hot weather above 90°F, like a picnic, the limit is 1 hour. When you serve food, put leftovers away right after eating rather than after cleanup. If you're hosting, keep cold foods on ice and hot foods hot, or set out small amounts at a time. Teach family members the rule too, so nobody grabs risky food. It's frustrating to throw food out, but food poisoning can be serious, especially for young kids, older adults, pregnant people and anyone with a weak immune system.

Speed Man tip: Set a timer after meals.

Wrap-up: 2 hours. Toss. Timer.