Originally Posted by GREENCOUNTYPETE
very oily cloth can actually self heat and combust on it's own it doesn't need the dryers help.

why the dirty rag bin is metal with a metal lid like this https://www.uline.com/Product/Detai...vAnSEAYYASABEgIkAPD_BwE&gclsrc=aw.ds

when I worked at the garage I had uniform service , there is a reason the bin for dirty uniforms was a metal 55 gallon drum with a metal lid if the uniform combusted it wouldn't take the shop down also.

From the Madison July 2019 fire hazard bulletin.
"rags saturated with cooking oil residue can self-heat and undergo spontaneous combustion after being laundered."

I heard that before, yes shops have metal drums or metsl containers for that, at least some do