Drink production can vary greatly depending on the product being made. ManufacturingDrinks.com explains that "bottling facilities differ in the types of bottling lines they operate and the types of products they can run". Drinks may be packaged in glass bottles, plastic bottles, or metal cans. Innovations in the drink industry, catalysed by requests for non-alcoholic drinks, include hot-fill or cold-fill, drink plants, processing, and packing.[2]