guinness smooth is a distinctively dark stout with a rich, creamy head. rich malty flavours and hints of sweetness balance perfectly in the swirl of countless minute bubbles to deliver a stout with lots of character and an extra smooth finish.guinness smooth is available in a 450ml dark coloured bottle and a 330ml can. the new and distinctive guinness smooth was produced by the local brewing team in nigeria; working closely with the international brewers in dublin, where the stout is originally from. the result is s a distinctive, flavourful beer with the perfect balance of sweet and bitter to achieve smoothness and refreshment that everyone can enjoy. guinness smooth is a distinctively dark stout with a rich, creamy head. rich malty flavours and hints of sweetness balance perfectly in the swirl of countless minute bubbles to deliver a stout with lots of character and an extra smooth finish.guinness smooth is available in a 450ml dark coloured bottle and a 330ml can. the new and distinctive guinness smooth was produced by the local brewing team in nigeria; working closely with the international brewers in dublin, where the stout is originally from. the result is s a distinctive, flavourful beer with the perfect balance of sweet and bitter to achieve smoothness and refreshment that everyone can enjoy.