Stop eating sprouted potatoes! Here’s how to keep them fresh and safe

Potatoes are a kitchen staple, but improper storage can lead to sprouting, which not only reduces their quality but can also make them harmful to eat. In this guide, you’ll learn practical tips to keep your potatoes fresh for longer and why eating sprouted potatoes could pose serious health risks.

How to avoid potatoes from sprouting

1. Store in a cool, dark place
   Potatoes should be stored in a cool, dark, and well-ventilated space.
   Avoid storing them in the refrigerator, as the cold can turn their starch into sugar, altering the taste and causing discolouration when cooked.
2. Keep them dry
   Excess moisture can promote sprouting and mould. Store potatoes in a breathable container, like a paper bag, mesh bag, or a basket, rather than sealed plastic bags.
3. Avoid light exposure
   Exposure to light can cause potatoes to develop chlorophyll and solanine, which turns them green and bitter. Use opaque storage options to block out light.
4. Separate from other produce
   Do not store potatoes with onions or bananas as these release ethylene gas, which accelerates sprouting.
5. Use sprout inhibitors
   Placing a clean apple with the potatoes may delay sprouting due to its ethylene absorption properties.
6. Alternatively, you can purchase commercial sprout inhibitors.
7. Monitor and rotate
   Regularly check your potatoes and remove any that are starting to sprout or spoil. Use the older ones first to minimize waste.

Why you shouldn’t eat sprouted potatoes

Eating sprouted potatoes can be harmful due to the following reasons:

Sprouted potatoes develop higher levels of solanine and chaconine, natural toxins that can cause symptoms like nausea, vomiting, diarrhoea, headaches, and in severe cases, neurological issues.

These toxins are concentrated in the sprouts, eyes, and green areas of the potato.

What to do if a potato has sprouted

If the sprouts are small (less than ½ inch) and the potato is still firm:

• Cut off the sprouts and surrounding area, as toxins may have spread.
• Peel the potato to remove any green areas or eyes.
• Cook thoroughly, as heat can help reduce toxin levels.
• However, if the potato is soft, wrinkled, or excessively sprouted, it’s best to discard it. Consuming overly sprouted potatoes is not safe.