Am totally disappointed by the quality of the coal. All Baumarkt-briquettes burn longer and more evenly than those alleged Premium briquettes from Weber. They cater the name Weber in any way! There are really only disadvantages. So many sparks as these briquettes I otherwise never! The yellow / brown ash at the end is really difficult to clean, was much easier and better with NoName. And from the longer heat conservation I have also noticed nothing! Will they not buy again - really absolute rip off!