I've not used it, but I can't see that it would hurt.
The studs are not the same on each end.
One end's sort of rounded with a dimple, the other's sort of flat or slightly cupped.
I wanna say the end that's sort of cupped is the one that you put into the jug. Check the manual and see if that jives with the pix in it. - or get me straight on it. (: