The Mini Express from Bialetti allows you the pleasure of coffee directly served in your cup, ready to be tasted. It works like the original Moka Express, you fill the bottom base with water and fill the funnel with coffee. Screw on the top column and place direct on stove top. Place your cup under the spout and your espresso will be ready in 4-5 minutes. The coffee maker has an exclusive safety valve patented by Bialetti. Please note that this cup size is based on espresso cup sizes and not on regular tea or coffee cup sizes.