H4rros

Hi everyone, I'm writing on my first mod and i want to make smelting recipe that uses a waterbucket. I want to make salt out of water and my problem is i can't figure out how i can how i can get an empty bucket back when the melting is finished. I put the waterbucket into the furnace and as soon as the melting is finished i get the salt but the bucket is gone. I have a crafting recipe and there it works. I hope anybody of you can help me