Does nobody worry about the foil lining inside the tube affecting the soap? I know a lot of people use Pringles tubes as a soap mould, so I’m guessing it must not be aluminium?
It's covered in a fairly tough, thin plastic film.Does nobody worry about the foil lining inside the tube affecting the soap? I know a lot of people use Pringles tubes as a soap mould, so I’m guessing it must not be aluminium?