Start by making all fields in the drink class private. Then create one constructor which sets those fields to sensible values. you should be able to write
Drink icedTea = new Drink(1, 15, "Iced tea", "Kitchen table"); // °C presumed
or similar. You should never be able to gain access to variables from outside the class. Provide methods if required to access individual fields.
Override the toString method; you can then write
System.out.println(icedTea); or similar and get a sensible output on screen.