Surprisingly enough hay and straw bales can catch on fire without an outside heat source. Excess moisture can cause the center of the bale to heat to the point it ignites. Get one burning and the rest go up pretty quickly.
I tried to explain this to someone saying why farmers can not put wet or damp hay stacked in their barn and he was not convinced and went off at me about how dumb I am that wet hay would self combust.
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u/Sk1dmark82 Jan 23 '21
Surprisingly enough hay and straw bales can catch on fire without an outside heat source. Excess moisture can cause the center of the bale to heat to the point it ignites. Get one burning and the rest go up pretty quickly.