A Review Study on Effect of Temperature and Humidity on Onion in Storage

Onions are an important vegetable, but storing them properly is a challenge. Temperature and humidity play a big role in keeping onions fresh. High temperatures cause moisture loss, shrinkage, and sprouting, while very low temperatures can damage their texture. If humidity is too high, onions can develop mold and bacterial infections. If it is too low, they dry out and become lightweight. This review explores how temperature and humidity affect onion storage. It also discusses methods to improve storage, such as controlled atmosphere storage, special packaging, drying, and fumigation. Using the right storage techniques can help reduce spoilage and keep onions fresh for a longer time. New technologies like AI-based monitoring and radiation treatment are also being studied to improve onion storage. By understanding the best storage conditions, farmers and traders can reduce losses and maintain onion quality. This review highlights solutions to improve onion storage and prevent wastage in the supply chain.