Although potatoes keep quite well, they will eventually sprout. However, there is a simple step you can take to prevent this problem.
*Who has never been disappointed to discover, after a few weeks, sprouted potatoes in the cupboard? This phenomenon, well known to cooking enthusiasts, poses a problem not only aesthetic but also practical, because the sprouts can affect the texture and taste of the tubers. Fortunately, our grandmothers had more than one trick up their sleeve to keep potatoes longer.
Potatoes usually sprout when storage conditions are not optimal. Potatoes are sensitive to light, moisture, and heat. When exposed to light, potatoes produce solanine, a toxic compound that turns the tubers green and inedible. Heat and moisture, on the other hand, stimulate the sprouting process, especially when potatoes are stored for too long.
The ideal place to store them is a dry place, protected from humidity and very dark. This can be a closet, a cellar, a pantry, or even a canvas bag will be perfect places to store them.
To maximize your chances of your potatoes not sprouting, you absolutely must try this simple method that relies on using charcoal! The trick is to place a few pieces of charcoal (untreated, of course), two or three should be enough, in the basket or bag of potatoes. You can also sprinkle the potatoes with charcoal powder. Remember to replace the charcoal regularly. After a month or two, change the charcoal pieces to ensure continued effectiveness.
This method is based on a simple but effective principle: charcoal acts as a natural dehumidifier. It absorbs the humidity present in the ambient air and thus prevents the development of germs. In addition to absorbing humidity, charcoal also has the ability to capture ethylene fumes, a gas that promotes the maturation and, therefore, the germination of potatoes.
If despite all your efforts sprouts appear after a certain time, don’t panic, you don’t have to throw away your potatoes. They remain edible. You just have to remove them with a knife and eat your potatoes quickly.