In the more traditional vending machine, ingredients are selected, mixed and dispensed in the machine using a variety of powdered ingredients. "These machines represent the original technology from the early days of drinks vending before the in-cup system was developed," says Klix. The company explains that these types of machines sometimes offer a low cup cost as the quality of ingredients and the quantity used can be set by the operator. "The main issues are the reliability implications of many moving parts and the tendency in some machines to deliver a drink that is tainted by the previous serving."