Storing potatoes and onions properly is not only crucial for preserving their flavor and texture but also for prolonging their shelf life. While these two staples are often kept together in the kitchen, they each have specific storage needs to prevent spoilage and waste. Understanding these needs can dramatically improve your kitchen organization and minimize trips to the grocery store.
Potatoes thrive in a cool, dark, and dry environment. The ideal storage space is a pantry or a kitchen cupboard where temperatures range between 45°F and 55°F. Exposing potatoes to light can lead to a process called "greening," which involves the development of a bitter compound called solanine.
Onions, unlike potatoes, require a well-ventilated spot to stay fresh. They do best in a dry environment where there is air circulation, such as hanging in mesh bags. If your pantry is humid, consider placing onions in a wire basket or open bin to maintain good airflow.
Keeping potatoes and onions together is a common mistake that can cut their shelf lives in half. Onions release ethylene gas, a plant hormone that accelerates the ripening and spoilage of nearby produce, such as potatoes. To prevent this interaction, it's important to store these two vegetables separately.
If space is limited, use separate, ventilated storage containers on different shelves or designated areas to ensure that the ethylene gas does not affect the potatoes. Many kitchen storage solutions are available that incorporate good airflow and organization, such as ventilated storage bins specifically designed for root vegetables.
No, it's best to store them apart because onions emit ethylene gas that can cause potatoes to spoil quickly.
When stored properly in a cool, dry place, potatoes can last up to several months, while onions can remain fresh for up to three months.
Other ethylene-sensitive foods such as apples and banana also produce ethylene gas, so keeping these away from your potatoes is a good practice to increase their shelf life.
For more storage tips and solutions, be sure to check out other useful guides available on our blog.
BIG SALE.... Special Offer HOT HOT potato deals!! These will go fast! HURRY!
Immerse yourself in architecture’s most boundary-pushing ideas—where innovative home improvements meet visionary urban developments. Discover new building techniques, materials, and creative concepts that are redefining how we shape our spaces on a global scale.