That is a thing already, but only in the Casting Furnace,
which is where it makes actual sense to be a thing
(I mean Blasting Furnace can only produce ingots anyways,
so that would be basically a no-operation).
#Ingot Remelting
drifting loom
queen sequoia
Oh my bad, i only checked the regular furnace because thats all i had at the time
drifting loom
Still though, this behaviour is a little bit strange 🤔.