Is it safe to reheat mushrooms?
According to this very popular Bright Side video (https://youtu.be/P2BVyHOdFUo) , it is not safe to reheat mushrooms as they not only lose their nutritional value, but can also make you ill. This, clearly, is a very simplistic position as we would not have such delicacies as tinned mushroom soup, and pre-cooked mushrooms on pizza toppings etc.
So what precautions should one take when reheating mushrooms? Is it a particular variety that is prone to this? I have been cooking and reheating fresh white and brown mushrooms in dishes for many years now in stews and casseroles without any ill effects. Have I just been lucky?
Best Answer
That's a myth, and as such your follow-up questions are moot.
There is no scientific evidence of any kind that any particular method of reheating mushrooms -- or not reheating them -- is dangerous or problematic in any way. The popularity of that video does not automatically make it valid; videos about "slenderman" are equally, if not more, popular.
What's problematic about leftover mushrooms has nothing to do with reheating them, but rather with storage. Mushrooms, like garlic, potatoes, and onions, are dug out of the dirt and as such carry an array of dirt-loving bacteria. If the mushrooms aren't properly washed in the first place (and many people think you can't wash mushrooms because of another myth), and then they are not refrigerated promptly and correctly, they become incubators for those bacteria, including the dreaded Clostridium botulinum.
However, if your mushrooms are contaminated, those bacteria and their toxins are present whether you microwave your leftover stroganoff or eat it cold.
The idea that the microwave destroys the nutritional value of the mushrooms is just the old hoax, promulgated when home microwaves were introduced in the 70's, and equally nonsense.
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Quick Answer about "Is it safe to reheat mushrooms?"
Reheating mushrooms can give you an upset stomach. According to the Independent and the European Food Information Council, reheating mushrooms is a big mistake. Mushrooms contain proteins that can be damaged by enzymes and bacteria if not stored properly, e.g. left at room temperature too long.Can you eat day old cooked mushrooms?
Properly stored, cooked mushrooms will last for 3 to 5 days in the refrigerator. How long can cooked mushrooms be left at room temperature? Bacteria grow rapidly at temperatures between 40 \xb0F and 140 \xb0F; cooked mushrooms should be discarded if left out for more than 2 hours at room temperature.Can you heat up mushrooms in the microwave?
Mushrooms are already low in calories and fat free, and when you microwave them, there's no need to add any oil or butter. All it takes is two short steps: Place thickly sliced mushrooms in a microwave-safe bowl. Cover and cook on high for 2 to 3 minutes, stirring once.Are mushrooms toxic when reheated?
Mushrooms are rich in proteins. They should be consumed the same day they are cooked. As they are enriched with proteins, their structure changes when reheated, which can be harmful to our body. When you eat reheated mushrooms, you put yourself at risk of digestive and even serous heart problems.Can you reheat already cooked mushrooms?
According to the European Food Information Council (EUFIC), if cooked mushrooms are kept in the fridge for no longer than 24 hours, they can safely be reheated. The EUFIC recommends reheating to a temperature of 158 degrees Fahrenheit or 70 degrees Celsius (via Business Insider).You Can't Reheat Some Foods Under Any Circumstances
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