Why aren all beer bottles screw-cap?
I’ve never come across bottles of either variety that couldn’t be returned and reused. Not sure about that. Even if the design of the mouth enables reuse, the thickness of the glass is a factor, if you don’t want your bottles exploding on you. Old-style poptop bottles (of longneck size – ie 750mL) are in great demand amongst home brewers down under, because when the breweries switched to screwtops, the glass of the bottles simultaneously became much thinner. Those bottles are specifically designed to be throwaway – single use only – and are of no use to anybody interested in rebottling. In fact, unless you stumble upon some old bottles at a garage sale, you end up having to buy brand new manufactured empties from a home brew supplies store – that’s how useless the screwtop bottles are.
