Why i am getting different amount of charcoal?

Lets say i put 1k wood in each furnace, in 1 i get 516 in the other one 538.
Is there a way to fix that?

Not realy an issue. coal production as a random element in the code.
This behavior is the same without quicksmelt

**Random.Range(0f, 1f) > burnable.byproductChance**