Why did you have to make it sound so obvious for?
I read that and immediately realized you were talking about molten alloy and then it all fell into place…
I had never considered that the mixer would be able to mix liquid metals into an alloy.
EDIT: To be fair though, in my mind. Alloys happen by mixing AND heating. Not just pouring two molten metals together and mixing them. Doing that IRL would solidify them into a multi colored lollipop.