You don’t really get a desire for coffee when you see this mug. But it’s more the discussion which is interesting than the design itself. KeepCup is made from the safe food grade plastic Polypropylene 5, free from BPA and phthalates. Instead of throwing cup after cup, you re-use it. Disposable paper cups are not really recyclable. They are often made from a composite of materials: kraft bleached paper sprayed with a polyethylene coating. Paper cups are often impregnated with toxic dyes which make them difficult to recycle.