If you’ve ever reached into your pantry and found potatoes with small sprouts growing out of them, you’ve probably paused and wondered whether they’re still safe to eat, or if they belong straight in the trash.
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Sprouting potatoes are common, especially when they’ve been stored for a while. But whether they’re usable depends on how far the sprouting has progressed and the condition of the potato itself.
Why Potatoes Sprout In The First Place
Potatoes are living plants, even after harvest. When they’re exposed to warmth, light, or extended storage time, they naturally begin to sprout as part of their growth cycle.
Sprouting doesn’t automatically mean a potato is unsafe, but it does signal that chemical changes are happening inside the potato.
The Compound You Should Be Aware Of
According to food safety experts, potatoes naturally contain compounds called glycoalkaloids, including solanine and chaconine. These compounds increase as potatoes sprout or turn green.
In large amounts, glycoalkaloids can cause digestive issues and other unpleasant symptoms. That’s why heavily sprouted or green potatoes raise safety concerns.
When Sprouted Potatoes Are Still Safe To Eat
Sprouted potatoes can still be used if all of the following are true:
- The potato is firm, not shriveled
- Sprouts are small
- There are no green patches on the skin or flesh
In these cases, experts say you can safely prepare the potato by:
- Cutting off the sprouts completely
- Peeling away any green areas
- Cooking the potato thoroughly
Once trimmed, the remaining potato can be used as usual.
When You Should Throw Them Away
You should discard sprouted potatoes if:
- They’re soft, wrinkled, or shriveled
- Sprouts are long or numerous
- The potato has green coloring
- There’s a bitter smell or taste
These signs indicate higher levels of glycoalkaloids, making the potato unsafe to eat.
Does Cooking Make Sprouted Potatoes Safe?
Cooking does not destroy glycoalkaloids. While heat can reduce small amounts, it won’t eliminate the risk if levels are already high. That’s why trimming alone isn’t enough when a potato is heavily sprouted or green.
How To Store Potatoes To Prevent Sprouting
To slow sprouting and extend shelf life:
- Store potatoes in a cool, dark place
- Keep them away from direct light
- Avoid storing them near onions, which release gases that encourage sprouting
- Use breathable storage instead of sealed plastic bags
Proper storage can significantly delay sprout development.
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