Smeltable Items won't burn in fire_ immediately.

Isn't it quite Ironic to see your Iron Ore smelted in a 1500 degree celsius furnace and make tools from it, but losing it by just throwing it to a 600 degree celsius fire? I know.

Actually, let's give much more benefit to "fire" than just a "burn virus". Maybe, if Smeltables are exposed to external fire for some time (this time may vary from smeltable ores and cookable foods), they can be changed. For example, Throwing some gold ores to fire will carefully turn it to a gold ingot. Same as any other smeltable, too. There is a short time limit to take that produced product tho, as it will be burned by the fire itself. And it will also vary.

Minecraft might not allow this for having "more than 2 features". No, it doesn't. I only have one feature, and I only explained what will happen while burning, and after burning.