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Well at tht temperature and age you should worry. unless those spots
cool down rapidly, I would get those out of the barn and layer them out
single file outside until they cool down. it has been my experience
with hay like this once that hot spot finds the right dry spot it will
ignite.
When putting up dry hay take your time and make sure it is dry and that
there are no slugs left from the swather. this is normally the cause
for spots like this. make sure when cutting the operator knows what
they are doing, and the machine is well maintained you will eliminate
this problem.
also be sure it is cured out, and you do not get to much dew on the hay
when bailing.
Aaron Olson
Olson Dairy
White Swan, Wa. State
----- Original Message -----
From: Triffel@aol.com
To: graze-l@witt.ac.nz
Sent: Tuesday, June 08, 2004 7:31 PM
Subject: [Graze-l] Spontaneous combustion
Hi every one,
A quick question about spontaneous combustion with hay. At what
temperature do I need to worry about round bales of hay being stored in
a building with some tough moisture spots which are heating up. Most of
the hay is dry enough -- just a few high moisture spots. The bales are
solid core orchard grass, 5' wide and are stacked vertical two high on
solid wooden floor. The spots are F 135 degrees in the spots surrounded
by F 85 degree hay in the rest of the bale. It 5 days old.
Thanks for your answer.
Dennis Trissel
Harrisonburg VA
Triffel@aol.com
