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Foods That Are Bad Leftovers

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It’s no secret that leftovers can make you sick, and leftovers are a blessing to anyone who doesn’t have the time or energy to cook. You’ve probably heard that food left at room temperature can harbor bacteria or that it’s best not to eat food that’s been left out for too long. However, you should eat them within three days of cooking because they can make you sick if not consumed in that time frame.

The most common way leftovers can make you sick is through food poisoning, which comes from bacteria growth on food that has been out for too long. Other ways leftovers can make you sick are through parasites and viruses. Symptoms include stomach cramps, diarrhea, and fever within 8 to 48 hours after consumption, so it is essential to be aware.

Cremé Brulee

Most people would think that cremé Brulee is a delicious, decadent dessert. However, the leftovers can make you sick! It is because of the bacteria in your mouth and intestines that feed off sugar and milk products such as creme Brulee. When these bacteria digest this food, they create butyric acid, which can cause diarrhea or stomach cramps.

The best way to avoid getting sick from cremé Brulee leftovers is by refrigerating them within two hours after cooking for at least four hours (or until it’s cold) and then eating them within five days. If you don’t intend on trying all of your leftovers right away, divide them into smaller portions, so it does not go bad before you eat it all up.


Risotto is an example of the best dinner recipe, but it can also be a recipe for disaster. Risotto leftovers are one of those things that people either love or hate. For some people, leftover risotto becomes an opportunity to have another glorious meal, while others would rather throw away their food than eat it again. Therefore, it’s essential to know how long you should keep your risotto, so you don’t end up with leftovers that will make you sick!

Fried Foods

Fried foods are delicious, but they can also make you sick. It’s important to remember that even though fried foods and portions may taste good if not kept at a safe temperature, bacteria can grow on them and cause food poisoning. For example, suppose you’ve got some leftover fried chicken or potato salad in your fridge from last night’s get-together. In that case, it needs to either be eaten today or thrown away within 2 hours of being cooked to avoid getting sick tomorrow morning. 


If you are thinking about cooking clams the next time you have leftovers, think again. There is a chance that they can make you sick! Clams are notorious for being hosts to different types of bacteria, some of which can be harmful to humans. In addition, when these clams are stored improperly or not cooked enough, they can contaminate your food and cause illnesses like vomiting and diarrhea. Clam dishes should only be made once and consumed immediately for this reason. The best way to avoid getting sick is to cook it right away!

White Fish

Whitefish leftovers can make you sick if they are not handled correctly. Some people may think that leaving the fish in the fridge for a few days is harmless, but bacteria can grow and lead to food poisoning. The only method to be certain that your white fish will not make you sick is by following these steps:

  • Cook thoroughly before eating.
  • Keep cooked food hot until served or refrigerate promptly after cooking.
  • Reheat leftover foods. 

To keep your white fish from going bad, be sure not to freeze it as this will cause bacterial growth, which will lead to food poisoning. Also, always refrigerate your leftover white fish within two hours of cooking it, or else the bacteria will have enough time to progress and produce toxins harmful to humans.

Celery And Carrots

Celery and carrots leftovers that can make you sick are a common occurrence for many people. It is because the bacteria in the vegetables can survive cooking, refrigeration, and freezing. If eaten raw, they will most likely stay healthy, but if cooked then consumed without reheating them to 165 degrees Fahrenheit or higher, there is a chance of illness from the foodborne illness campylobacter. This bacteria causes diarrhea, cramping, fever, and nausea, which last up to 7 days after consuming the celery and carrots. Cooking these vegetables at high levels with proper hygiene can lower your risk of contracting this type of infection by 90%. 

Breast Milk

Breast milk leftovers (including when you pump for your baby) can contain bacteria that lead to food poisoning or gastrointestinal illnesses if eaten by others. The good news is that breast milk leftovers are easy to avoid! If you’re in charge of throwing out the bit pumped breastmilk, throw it in the fridge and use it within 3-4 days or freeze until needed later down the line. Avoid using any leftover breast milk unless someone else has been tested and found free from all illness-causing bacteria.


As a consequence of the holiday period, many people will be preparing and consuming leftovers. It is essential to know which foods can make you sick if they are not handled correctly. Many types of food are never reheated: cheese, eggs, mayonnaise, peanut butter, and shellfish. These items all have a high risk for bacterial growth because they contain protein and fat to keep them from spoiling quickly enough. The bacteria in these foods can lead to foodborne illnesses such as salmonella or botulism, so it is best to avoid eating any leftover dishes with these ingredients.