How do they salt peanuts while they are still in the shell?

 How are peanuts are salted in the shell? If you were expecting some fancy high-tech process involving nanobots or teleportation, I hope you won't be disappointed to learn that peanuts are salted in the shell simply by soaking them in brine (a mixture of salt and water), then drying them by roasting, leaving a salt residue behind on the nut in the shell. Sometimes a vacuum is used to remove air from the batch before the brine is introduced, but even so the process is fairly basic.