Reheated potatoes: Dispelling the myth of toxicity
Potatoes are one of the most common items on our plates. Many people wonder, however, if they can be eaten after being reheated, for example, the next day. Some claim, "Reheated potatoes are poisonous." Sounds alarming? Don't worry—let's examine this more closely.
The primary concern related to potatoes is solanine, a natural chemical compound found in the green parts of the vegetable. However, there’s no need for concern because solanine does not form when reheating potatoes. If the potatoes are healthy, not green, and properly boiled, reheating them does not make them unsafe. The issue could rather be poor storage conditions – for example, leaving them in a warm place for many hours, which encourages the growth of bacteria, particularly Clostridium botulinum.
How to safely reheat potatoes?
If you want the potatoes to be safe to eat the next day, store them in a closed refrigerator. Avoid leaving them on the kitchen counter overnight! It is best to reheat them only once – in the oven, pan, or microwave- until they are hot throughout. Repeating this process multiple times facilitates the multiplication of harmful bacteria.
Are reheated potatoes healthier?
Few people are aware that after cooling boiled potatoes, some of the starch transforms into resistant starch. This starch is more challenging to digest, but it has a beneficial effect on the intestines, similar to fibre, supporting healthy gut flora. Therefore, cold or reheated potatoes may be better for our digestive system.
Feel free to enjoy reheated potatoes, but do so wisely.
That's why you can consume reheated potatoes if they are stored and reheated correctly. They are neither poisonous nor dangerous—it's just a culinary myth with little scientific basis. So, if you have leftover mashed potatoes or roasted potatoes, reheat them, add a fried egg and some dill, and savour a delicious, quick meal without any guilt.
