Watch Out! These 7 Foods Should Never be Reheated

· March 22, 2016
The best way to consume vegetables is in their raw state. If you cook them, remember not to reheat them later!

Reheating food is a great way to reduce the waste of food, which on a global level is on the order of tons every day.

It’s extraordinarily sad that some countries have an excess of wasted food, while in others people are starving.

That’s why for many years people have promoted the consumption of leftover food, either by preparing new recipes or reheating it.

But if you’re in the habit of reheating leftovers, you should know that it’s not always the safest option, because there are some foods that can be toxic when subjected to high temperatures.

Because so many people are still unaware of what foods those are, in today’s article we want to share a list and describe why these seven foods should never be reheated, as they may become harmful to your health.


2 spinach
The best way to eat spinach is when the leaves are fresh, and preferably raw. There are plenty of recipes like smoothies, salads, and cream sauces that let you take advantage of all the benefits of spinach without having to cook it.

When you subject spinach to heat or microwaving, the nitrate content in the leaves becomes nitrite, which can be harmful to your health.

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Celery is usually consumed raw, just like spinach, but it’s also sometimes added to soups or hot sauces. In these instances, it’s better to consume freshly cooked celery and avoid leaving leftovers to reheat.

Like spinach, celery contains nitrates that can become harmful to your health when reheated.

Nitrites are a compound that’s associated with the development of different types of cancer, although they only pose such a serious risk when consumed in excess.

Regardless, the best way to obtain 100% of the beneficial properties of celery is to consume it raw.


3 hard boiled egg
Because they’re small and easy to prepare, it’s rare that you might end up with leftover eggs.

But if you do, it’s never a good idea because they lose their freshness, smell, texture, and flavor.

It’s also not recommended to reheat eggs because when they’re subjected to higher temperatures they may release certain toxic compounds.


For years, alternative medicine has evaluated this root vegetable, finding it an excellent source of essential nutrients and antioxidants.

But beets also contain minimal amounts of nitrates, and while harmless, it’s best not to subject them to high temperatures to avoid any risk.

Most nutrition experts recommend enjoying beets in vegetable juices, smoothies, or salads.


4 potatoes
Potatoes contain nutrients and other compounds that are very good for your health, as long as you eat them in moderation. Being high in carbohydrates, too many potatoes with dinner can cause problems with your weight.

Aside from that, you should also know that reheating potatoes causes them to lose a lot of their nutritional value. In addition to that, their flavor is altered and certain compounds may be released that don’t sit well with your digestive system.

The good news is that there are plenty of simple and delicious ways to enjoy cooked potatoes – what do you think about mashed potatoes, for example?


Mushrooms and other edible fungi should never be reheated under any circumstance because they can lead to digestive problems and even heart disorders.

While mushrooms do have beneficial health properties, you should only eat them when they’re fresh.

The best way to avoid wasting mushrooms is to only prepare the amount you need, or eat them within a few hours of preparation.

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3 fried chicken
Chicken is a recommended component of a healthy, balanced diet because of its protein content.

But when you reheat cooked chicken, it loses freshness, the protein composition changes, and it can cause problems with digestion.

As with mushrooms, it’s a good idea to only prepare the amount of chicken that you’re going to eat with your meal. If there are leftovers, however, be sure to reheat them at a very low temperature.