Americano is espresso with hot water added. It is allowed to dilute espresso with water in a ratio of 1:1, 1:2 or 1:4. The classic ratio is 1:1, but you can make Americano any way you like. The more water, the less concentrated the drink will be.
It is important to add water only after the coffee is ready, and not to brew it initially with a lot of water, such as lungo coffee. Most carob coffee machines are not designed to brew Americano coffee, they can only make lungo, espresso or ristretto coffee, so the American version of the coffee drink often has to be diluted by hand. The taste of Americano is quite original and largely depends on the way the ingredients are mixed. The coffee drink has connoisseurs in America and various European countries. Bold experiments are carried out with americano, adding milk, crushed ice, alcohol and various types of syrup to it.