Apples? Interesting analogy .
As for coffee in America the ingredients and preparation depend on what kind of coffee you want to drink. Also depends on what part of the country and what ethnic neighborhood you are in. People from all over the world live here and they brought their coffee habits with them.
So there is no such thing as "American" coffee. If you don't like a cup of coffee at one cafe, go to another. In Los Angeles we have the choice of French, Armenian, Turkish, Greek, South American, Cuban, Mexican, Russian, German, etc, all on the same street! The people who brew these coffees are doing it exactly as they did in their home country and they are 100% American. So which type of coffee do you want to know about?