Unpeeled sugarcane can spoil relatively quickly if left at room temperature, especially in warm and humid conditions. Without refrigeration or proper storage, unpeeled sugarcane can start to degrade within a few hours to a day. The exact time frame can vary depending on various factors, such as the ambient temperature, humidity levels, and the initial quality of the sugarcane.
Once the sugarcane starts to spoil, you may notice changes in its appearance, texture, and smell. It may become discolored, develop mold or an unpleasant odor, and become soft or slimy to the touch. Consuming spoiled sugarcane is not recommended, as it can lead to digestive issues and potential foodborne illnesses.
To extend the shelf life of unpeeled sugarcane, it is essential to store it in a cool, dry place away from direct sunlight and other fruits or vegetables that produce ethylene gas (which can accelerate ripening and spoilage). However, for longer-term storage, it's best to keep sugarcane refrigerated. When properly refrigerated, unpeeled sugarcane can last for up to 1-2 weeks.