Can boiled potatoes left out at room temperature for three weeks develop harmful mold?

Yes, boiled potatoes left out at room temperature for three weeks will almost certainly develop harmful mold.

Here's why:

* Mold thrives in warm, moist environments: Room temperature provides the perfect environment for mold growth, especially with the moisture present in boiled potatoes.

* Time is a factor: Three weeks is a long time for bacteria and mold to multiply. Even if the potatoes were initially cooked, the leftover moisture and nutrients provide a feast for microorganisms.

* Mold is dangerous: Mold can produce toxins that can cause various health problems, ranging from mild respiratory issues to severe allergic reactions.

It's crucial to never consume food that has been left out for extended periods, especially if you see any signs of mold. Even if you can't see mold on the surface, it may be present deeper within the potato.

Always err on the side of caution and throw away any boiled potatoes that have been left out at room temperature for more than a few days.