The differences between American, latte, mocha and cappuccino are mainly reflected in the following four aspects:

1. Ingredients: American coffee is usually diluted with water, latte with milk, mocha coffee with chocolate sauce, milk and whipped cream, cappuccino with milk and foam.

2. Taste: American coffee tastes mellow, latte is silky, mocha coffee is rich, and cappuccino is delicate.

3. Temperature: Lattes and cappuccinos are usually hot, while American coffee is usually ice. Mocha coffee can be cold or hot.

4. Caffeine content: American coffee usually has higher caffeine content than other coffees.