In 1933, the world-famous Moka Express from the Italian brand Bialetti saw the light. The mugs have traditionally been made of aluminum and today we can only recommend aluminum. It is a food grade aluminum that is completely harmless to health. On the contrary, after a few uses, the inside of the coffee machine is covered with a patina , thanks to which the coffee maker maintains a pleasant coffee taste and the resulting drink tastes better than, for example, stainless steel. The leading manufacturer is of course the Italian brand Bialetti , which guarantees the precise design and style of its products. If you want to prepare a strong expresso coffee at a lower cost in domestic conditions, the cheaper Kaffia variants will also work well .