It means "four"...4 times better than other brands.
The flavors are complex. It's hard to argue with coffee beans that start off being excellent before you even roast them. I love medium roasted beans. Zoka does it properly. You don't want to burn the bean. This one is perfect. Peace be upon the growers of these sublime beans.
Zoka Coffee Company
Charlton, thank you for your 5-star review of our Espresso Cuatro!