The best coffee is from aluminum coffee makers, because the coffee patina is best formed on aluminum and thus the coffee is more delicious Preparation: Fill the bottom with water to the line, pour ground coffee into a sieve, then screw on and place on the hob. On a gas cooker, flames must not extend beyond the bottom of the coffee maker. The coffee is pushed into the upper container, you will hear the typical bubbling and the aroma of fresh coffee will spread into the space. Your espresso is ready.  1 Italian cup is approx. 50 mlModel: Classico Colour: Black Specifications: suitable for gas stove, suitable for electric cooker, suitable for glass ceramic cooker Volume: 300 ml Dimensions: 9 x 20 cm Material: Aluminum