When to toss or salvage sprouting potatoes for safety
Potatoes are a staple ingredient in many dishes, but what should you do when sprouts appear on their surface? Are sprouting potatoes safe to eat, or is it better to avoid consuming them? Although it might seem sufficient to simply cut off the sprouts and proceed with cooking, the answer is not as straightforward as it appears.
20 October 2024 17:31
Potatoes stored under poor conditions may start to sprout. This process is natural and is associated with the release of solanine—a toxic chemical compound that protects the potato from pests but can be harmful to humans. While cutting off the sprouts might seem adequate, the issue may actually be more complex. Should you risk your health by eating sprouting potatoes, or is it better to dispose of them?
What are sprouts and why do they form?
Potato sprouts are simply shoots that start to grow when the potato is stored in a warm, humid, or sunny environment. This process is a natural reaction of the tuber as it attempts to start a new growth cycle. While the sprouts themselves aren't poisonous, their presence indicates an increased level of solanine in the potato. Solanine is an alkaloid that can be toxic in larger quantities and may cause food poisoning symptoms such as nausea, vomiting, stomach pain, or diarrhea.
Is it safe to eat sprouting potatoes?
Whether it's safe to eat sprouting potatoes depends on how much they have sprouted. Small, recently grown sprouts can be removed, and once peeled and thoroughly cooked or baked, the potatoes will be safe to eat. However, if the sprouts are large and the skin of the potato turns green, it's better to avoid them. A green tint on the skin indicates a higher concentration of solanine, which can be harmful if consumed in excess. In such cases, even cooking may not entirely eliminate the risk of poisoning.
How to store potatoes to prevent sprouting?
To keep potatoes fresh for as long as possible and prevent sprouting, store them in a dark, cool, and dry place. The ideal temperature is around 5-8 degrees Celsius—for instance, in a basement or pantry. Avoid exposing potatoes to sunlight, as light encourages solanine production. Regularly check your potato supplies and remove any that begin to sprout or soften.
What to do with sprouting potatoes?
If you notice that potatoes are starting to sprout but the shoots are still small, you can use them in the kitchen provided you remove the sprouts and peel the potatoes. However, if the potatoes are already distinctly green or soft, it's better to discard them. Consuming a large amount of solanine can lead to serious health problems, so it's not worth the risk.
