Even when baled between 15-20% moisture, there is still potential for a hay fire!
Hay fires are caused when bacteria in wet hay create so much heat that the hay spontaneously combusts in the presence of oxygen. At over 20% moisture mesophilic bacteria release heat-causing temperature to rise between 130°F to 140ºF with temperature staying high for up to 40 days. As temperatures rise, thermophilic bacteria can take off in your hay and raise temperature into the fire danger zone of over 175°F.
Assessing Your Risk
If hay was baled between 15-20% moisture and acid preservatives were used, there is still potential for a hay fire but not as great as on . . .
Continue reading Hay Barn Fires are a Real Hazard