How Long Do Cooked Brussel Sprouts Last?

Brussel sprouts are delicious, nutritious, and you can prepare them in a variety of ways, from sautéing on the stove to making cream soups to roasting in the oven.

Not like pork chops or chicken cutlets, brussel sprouts are a little trickier to portion out. And if you cooked one brussel sprout too many, you may be wondering how to store the leftovers and how long they will keep.

For the answers to your questions and the ones you didn’t know you had to ask, read on below.

How Long Can You Keep Cooked Brussel Sprouts?

Cooked brussel sprouts last 1-2 hours at room temperature and 3-4 days in the fridge. Frozen cooked brussel sprouts stay safe to eat indefinitely, but they only retain their best quality for 9-12 months.1“Leftovers and Food Safety,” Food Safety and Inspection Service, U.S. Department of Agriculture, https://www.fsis.usda.gov/food-safety/safe-food-handling-and-preparation/food-safety-basics/leftovers-and-food-safety

The most important thing when it comes to safely storing cooked brussel sprouts is not to keep them at room temperature, which food safety experts call the danger zone.2“How Temperatures Affect Food,” Food Safety and Inspection Service, U.S. Department of Agriculture, https://www.fsis.usda.gov/food-safety/safe-food-handling-and-preparation/food-safety-basics/how-temperatures-affect-food, for too long.

Bacteria multiply rapidly in the temperature range of 40°F (4.4°C) to 140°F (60°C) and grow well on cooked brussel sprouts. A dozen bacteria on your leftover brussel sprouts probably won’t do much harm, but a few hundred can do plenty.

Can Eating Old Cooked brussel sprouts Make You Sick?

If you suspect that the cooked brussel sprouts have been on your kitchen countertop, dining room table, or in your refrigerator for longer than the times specified above, err on the side of caution and dispose of them.

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You can get food poisoning from eating cooked brussel sprouts that haven’t been stored properly or that have been kept for too long, even if they look perfectly fine and don’t feel, smell, or taste spoiled.

This is because the pathogenic bacteria that cause food poisoning are not the same as the spoilage bacteria that cause the brussel sprouts to spoil. Disease-causing bacteria don’t alter the cooked brussel sprouts’ texture, aroma, or flavor in any way, and so they’re virtually undetectable.3“Do spoilage bacteria make people sick?” AskUSDA, U.S. Department of Agriculture, https://ask.usda.gov/s/article/Do-spoilage-bacteria-make-people-sick

How to Store Leftover Cooked Brussel Sprouts

If you made more brussel sprouts than you and the family can eat in a single meal, remove them from the heat, allow them to cool down as quickly as possible, then refrigerate or freeze them.

Fridge temperature (40°F/4.4°C or lower) slows down the grown of bacteria on our food, but doesn’t stop it. So use up the cooked brussel sprouts within no more than 4 days from refrigeration, or they may become overgrown with bacteria and no longer be safe to eat.

To refrigerate leftover cooked brussel sprouts, place them in a ziplock bag or food storage container with the lid closed and store them in the lower compartment of your fridge, where it is coldest.

Freezer temperature (0°F/-18°C or lower) puts all bacterial activity on pause. This means that, technically, frozen cooked brussel sprouts stay safe to eat forever. However, they will eventually dry out and lose their texture, aroma, and flavor, so be sure to use them up within 9-12 months.

To freeze leftover cooked brussel sprouts, place them in a freezer bag or heavy-duty food storage container with the lid closed and store them in the freezer. Wrapping the brussel sprouts loosely in aluminum foil or plastic wrap isn’t enough as they may get freezer-burnt.

How to Tell If Cooked Brussel Sprouts Are Spoiled

As with all other vegetables, there are some very specific signs you should look for to determine if the brussel sprouts you cooked have gone bad.

First, touch the brussel sprouts. If they feel sticky and slimy to the touch, then they’re probably spoiled. Second, give them a smell. If you notice any off odors, whether sour or musty, this is also a sign that they’re past their prime.

The last and final sign of spoilage is the taste. If the cooked brussel sprouts are unpleasantly bitter or have a funky, unpleasantly weird taste, DO NOT eat them. The problem with spoiled food is that you have no reliable way to tell if it’s safe to eat, so it’s better to just play it safe.

In Conclusion

As a general rule of thumb, cooked brussel sprouts last:

  • 1-2 hours when left out on the kitchen countertop or dining room table
  • 3-4 days when properly refrigerated
  • 9-12 months when frozen

Cool the brussel sprouts down quickly after you’re done cooking them and refrigerate or freeze them, but don’t let them sit out at room temperature. Now, you know the reasons why.

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