at what internal temp will baled hay mold
Internal temperatures of 110 F in the first five days after baling are quite common in our region and are not a concern. Hay bale temperatures of 120 to 130 F will likely result in mold growth and will make the protein in the hay less available to the animals. But at those temperatures, there still is not a danger of fire. The concern is if mold growth causes the temperature to go even higher.