A friend of mine ,(another Surgeon) , runs a depot. at the local amenity site for mulching. Their piles are turned regular during the day by excavator and are dowsed with water. The Temp. is registered also, proper steam cooker...LOL, but have never heard of them going on fire. Max height is about 4Mtrs.
The tests for them here have E.coli and salmonella involved in them. There is also a test for a dust microbe that can cause Emphasaema like symptoms.
