Viral Baking Soda Trick Fails to Prevent Potato Sprouting, Experts Say

A viral internet trend claims that storing potatoes in a cardboard box sprinkled with baking soda can keep them fresh and sprout-free for months or even up to a year. The method, popularized by videos including one from a beloved Italian grandmother, suggests covering potatoes with baking soda and keeping them in a dark place to prevent sprouting and decay.

However, investigations reveal that while baking soda may help absorb odors and some moisture, there is no scientific evidence or professional horticultural advice supporting its effectiveness in preventing potato sprouting. Experts and plant councils confirm that baking soda is not a proven agent against sprouting, and research on the topic does not mention it as relevant.

The best practices for storing potatoes remain consistent and less sensational: keep them in a cool, dark, and well-ventilated environment. Avoid excess moisture, which can cause rot, so airtight plastic containers are discouraged. Instead, use ventilated cardboard boxes, paper bags, or mesh sacks. Additionally, potatoes should not be washed before storage to prevent added moisture that shortens shelf life.

In summary, while baking soda might slightly improve the storage environment by reducing humidity or odors, it does not stop potatoes from sprouting. Proper temperature, darkness, ventilation, and dryness are the key factors to maintain potato freshness and prevent sprouting over time.