Can Soup Sit Out Overnight?
Last reviewed: May 2026
Quick answer
No. Soup left out overnight must be discarded. The USDA recommends refrigerating all cooked soups, broths, and stews within 2 hours of cooking (1 hour above 90°F/32°C). Overnight is far beyond this limit, and reheating — even to a full boil — will not make soup that has been sitting at room temperature all night safe to eat.
Bottom line: discard it
Soup left out overnight has exceeded the USDA 2-hour safe limit. Discard it — reheating to boiling will not make it safe.
The 2-hour rule for soups and broths
The USDA recommends discarding all perishable cooked food — including soups, stews, chowders, and broths — that has been left at room temperature for more than 2 hours. At temperatures above 90°F (32°C), that window drops to 1 hour. Soup left in a pot on the stove overnight passes through the temperature danger zone (40°F–140°F) and remains there for hours. See the official food-safety sources used by StillSafeFood for references.
This rule applies to all soup types — chicken noodle, beef stew, vegetable soup, lentil soup, tomato soup, clam chowder, bone broth, and any other cooked liquid dish containing perishable ingredients.
Why reboiling doesn't fix it
A common belief is that bringing soup back to a boil makes it safe after sitting out. Boiling does kill most live bacteria — but it does not destroy the heat-stable toxins that bacteria such as Staphylococcus aureus and Bacillus cereus may have already produced overnight. Those toxins can cause illness regardless of how long or vigorously the soup is reheated.
Safe soup storage
- Refrigerate soup within 2 hours of cooking (1 hour above 90°F).
- Divide large batches into shallow containers so they cool quickly and evenly.
- Store in sealed containers at or below 40°F (4°C).
- Consume refrigerated soup within 3–4 days or freeze for longer storage.
Frequently asked questions
Can soup sit out overnight?
No. Soup left out overnight exceeds the USDA 2-hour safe limit and must be discarded, regardless of type.
Can I reheat soup left out overnight to make it safe?
No. Boiling kills bacteria but not the heat-stable toxins they may have produced. Discard soup left out overnight.
What if my soup was covered or in a slow cooker overnight?
Covering soup does not prevent bacterial growth. The USDA 2-hour rule applies whether soup is in an open pot, a covered pot, or a sealed container.
Check your soup
Use StillSafeFood to check any soup or broth — chicken noodle, vegetable, chowder, or stew.
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