When to toss sprouting potatoes for safety reasons
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 them? Although cutting off the sprouts might seem sufficient to prepare the potato for cooking, the answer is not as straightforward as it seems.
6:48 PM EDT, October 20, 2024
Potatoes stored in unsuitable 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 appear to solve the issue, the problem may be more complex. Should you risk your health by eating sprouting potatoes, or is it better to discard 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 place. This process is a natural reaction, as the tuber attempts to begin a new growth cycle. While the sprouts themselves are not 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 the degree of sprouting. Small, recently grown sprouts can be removed, and the potatoes, once peeled and thoroughly cooked or baked, will be safe to eat. However, if the sprouts are large and the potato skin turns green, it's better to avoid them. A green tint on the skin signals a higher concentration of solanine, which can be harmful in excess. In such cases, even cooking may not completely 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 41-46 degrees Fahrenheit—such as in a basement or pantry. Avoid keeping potatoes in sunlit areas, as light promotes the production of solanine. Regularly check your potato supplies to remove those that start to sprout or soften.
What to do with sprouting potatoes?
If you notice potatoes 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.
