Quick Answer: Can Hay Bales Spontaneously Combust?

Can hay catch on fire by itself?

Plant reactions and bacterial growth combine to raise temperatures in even the driest hay bales, although most never catch fire on their own.

However, when hay is packed tightly, and enough moisture gets in, the conditions may be right for spontaneous hay combustion..

Can hay bales explode?

STILLWATER — It might sound strange, but with no apparent ignition source, hay bales can burst into flames and cause much damage to storage facilities or spark a raging wildfire. … At 20 percent moisture, the hay is considered dry. However, mold will grow through respiration and produce heat until that point.

Can wet hay cause a fire?

“Excessive moisture is the most common cause of hay fires,” Schroeder says.” Odd as it might seem, wet hay is more likely to lead to a spontaneous-combustion fire than dry hay.” High-moisture haystacks and bales can catch on fire because they have chemical reactions that build heat.

Are hay bales dangerous?

Incidents tend to occur during baling and transport, stacking and handling, but the simple presence of bales stacked in fields is not without its dangers: round bales can roll down slopes causing deaths and passersby have been known to climb on them, causing toppling. …

How many bales of hay are in a stack?

A ton: 2000# pounds of hay to the ton. A retail three string bale weighs 100 # there are 20 bales in a ton. A “feed store ton” can be 16 bales.

Can bales of straw spontaneously combust?

With large round bales or large rectangular bales, hay moisture should generally be no higher than 16-18%. … Although most problems with spontaneous combustion begin occurring within two weeks after hay has been placed in storage, combustion is possible for two months.

At what temperature does hay self combust?

130 degrees FahrenheitWhen the internal temperature of hay rises above 130 degrees Fahrenheit (55 degrees C) it provokes a chemical reaction producing flammable gases that can ignite. Most hay fires occur within 6-weeks of baling.

Can you wrap hay bales?

Wrapping dry hay allows farmers to protect feed from the weather without building more structures. … Dry round bales wrapped with an in-line wrapper with plastic wraps of 6 to 8 inches overlap can still result in a layer of decomposed hay on the outside of the bale.

How do you stack hay?

Hay should be stacked in a crisscross manner, one layer in one direction and the next layer the other direction etc. and not packed too tightly to allow some air gap between bales. On larger stacks the bottom layer will necessarily hold moisture over time, and these bales are not usually horse worthy hay at that point.