# Left a pot of stock out overnight to cool? What to do with it this morning - URL: https://www.agentskillpacks.com/guides/left-stock-out-overnight-to-cool - Updated: 2026-11-04 - Book: The Lost Kitchen Skills, Checked by Nancy Whitaker (https://www.agentskillpacks.com/books/the-lost-kitchen-skills-checked) ## Short answer Stock left out on the stove overnight should be thrown out. USDA food safety guidance says perishable food left out of the refrigerator more than 2 hours, or more than 1 hour above 90°F, goes in the trash. A big pot holds heat for hours, which is exactly the problem. Some germs survive cooking, and they grow in a slowly cooling pot. You cannot smell or see them. Next time, cool stock fast in an ice-water bath, divide it into small shallow containers and put it straight into the fridge. ## What to do right now 1. **Throw it out.** Stock left out of the refrigerator more than 2 hours should go, per USDA food safety guidance. Overnight is far past that. 2. **Don't taste it to check.** FSIS says the germs that make people sick "do not generally affect the taste, smell, or appearance of a food." A good smell tells you nothing. 3. **Don't count on reboiling.** Some germs make spores that survive cooking. That is why the cooling rule exists even after a long simmer. 4. **Wash the pot well,** and save the next set of bones. The bones were never the problem. If someone already ate from the pot and feels sick, call a doctor. It hurts, we know, to pour out hours of work. It is still the right call. ## Why a big pot is the problem Here is the part almost nobody says out loud. A big pot of stock feels safe because it stays hot so long. That long, slow cool is the danger. The FDA Food Code explains that cooking kills most germs. But it names the exceptions: spore-forming germs such as Clostridium perfringens or Bacillus cereus. Those survive. And they like warmth. The Food Code warns against food spending a long time between 70°F and 125°F, where they grow best. A tall pot on a stove sits in that range for hours. [FSIS](https://www.fsis.usda.gov/food-safety/safe-food-handling-and-preparation/food-safety-basics/leftovers-and-food-safety) says a big pot of soup "will take a long time to cool, inviting bacteria to multiply." ## How to cool stock fast next time The FDA Food Code sets two deadlines. Get the stock from 135°F to 70°F within 2 hours. Then get it from 135°F to 41°F within 6 hours total. In the Food Code's own words, "The initial 2-hour cool is a critical element of this cooling process." That sounds hard. It isn't. The book's card takes a few minutes of work. 1. Strain the stock and take the pot off the heat. 2. Set the pot in a sink of ice water and stir. 3. Divide the stock into small, shallow containers. 4. Put them in the fridge while still warm. You don't have to wait. 5. Check one container with a food thermometer. Aim for 70°F within 2 hours. 6. Once cold, cover it and lift off the hardened fat. Use it within 3 to 4 days, or freeze it. Reheat it to a rolling boil before you use it. Want to keep stock on the shelf in jars? Meat stock is a low-acid food. The only USDA process for canning it is pressure canning, using the [USDA Complete Guide, Guide 5](https://nchfp.uga.edu/papers/guide/GUIDE05_HomeCan_rev0715.pdf). ## The pot that cooled on the back burner Maybe you grew up with a soup pot on the back burner all winter. The house smelled of onions and thyme. The pot cooled on the stove overnight, and in the morning it went in the icebox. That was normal. A 1910 USDA bulletin even suggested pouring extra stock, while hot, into fruit jars and sealing it. Nobody knew then what the cooling studies would show. So keep the habit of saving bones. Keep the long simmer. Change only what happens after the burner goes off. ## The chapter that covers the whole pot This is the problem [The Lost Kitchen Skills, Checked](/books/the-lost-kitchen-skills-checked) was written for. Nancy Whitaker checks 42 old kitchen skills against current guidance and badges each one SAFE TODAY, UPDATE IT or RETIRED. **Stock, Broth and the Whole Bird** has the card Make Stock from Bones, badged SAFE TODAY, with simmer times for beef and chicken. Its next card, Cool Stock Fast, is badged UPDATE IT. It gives the two-stage cooling plan with a drawing of the timeline. **The Leftover Kitchen** covers the 2-hour rule for every dish, how to reheat leftovers to 165°F and the 3-to-4-day limit in the fridge. **Pressure Canning for Beans, Meat and Soup** is the place to go if you want stock on the pantry shelf. Making jerky or soup for a crowd? Our page on [the heat step for homemade jerky](/guides/how-to-make-jerky-safely-at-home) covers another step the old ways skipped. ## Where this is in the book - Stock, Broth and the Whole Bird - The Leftover Kitchen - Pressure Canning for Beans, Meat and Soup Kindle: https://www.amazon.com/dp/B0HQ6P7N52 Paperback: https://www.amazon.com/dp/B0HQ6SX8CD Links go to Amazon. ToolGenX publishes this book under a pen name and earns from every sale. This book explains published US food safety guidance and points to tested recipes. It is not medical advice. Use a tested recipe and current processing times for anything you can. ## Is the book for you? - Yes, if You just found last night's pot of stock still on the stove - Yes, if Your family always let the soup pot cool overnight - Yes, if You want a simple way to cool a big batch next time - Skip it if You want to be told it is fine to keep it - Skip it if You need medical advice about food you already ate (call your doctor) ## FAQ ### Is chicken stock left out overnight safe to eat? No, by USDA guidance. FSIS says never to leave food out of refrigeration over 2 hours, or over 1 hour if the temperature is above 90°F. A pot left out overnight is well past that. Throw it out. ### Can you reboil soup left out overnight? Reboiling is not a fix in the guidance the book follows. The Food Code notes that spore-forming germs like Clostridium perfringens and Bacillus cereus can survive cooking. The FSIS rule is to throw out food that sat out more than 2 hours. ### Can I put hot stock straight in the fridge? Yes. FSIS says "Hot food can be placed directly in the refrigerator." Divide a big pot into small, shallow containers first, so it cools faster. ### How fast does stock need to cool? The FDA Food Code sets two limits. Cool from 135°F to 70°F within 2 hours, and from 135°F to 41°F within a total of 6 hours. The first 2 hours matter most. ### How long does homemade stock last in the fridge? Use it within 3 to 4 days, or freeze it. FoodSafety.gov lists 2 to 3 months in the freezer for soups and stews, for best quality. Reheat stock to a rolling boil before using it.