Wet hay should be carefully prepared before covering to prevent spoilage and ensure effective preservation. First, allow the hay to dry as much as possible before covering it. If the weather is expected to be clear, sunlight is an excellent option.
If exposing it to sunlight isn't a viable option, spread it out in a well-ventilated area or use equipment like a tedder or rake to increase air circulation. If immediate drying is not feasible, ensure the hay is spread out in a thin layer to facilitate faster drying.