It was an accident...
Somebody left the fridge door slightly opened.
So my 15 lit Pleurotus bag touched the hot fridge light and after some hours burned the spawn and heated 1/3 of the whole volume. Possible mycelia death.
Heat was extended up to where I left the blue marker.
I have bathed this 1/3 bag area in bleach rich solution and put it inside a new bag in the fridge.
1. Can I use the dead portion as mush food along with 10% proper surviving spawn in straw bags?
2. Is there any other recovery method?