Dental liquid dispensers can take many forms, but whether a manual bottle or an automated machine, these products are designed to make it simple to properly mix gypsums and investments. Dental bottles are simple plastic bottles with a nozzle tip allowing precision dispensing of water for mixing with powder materials. Automated systems take accuracy and efficiency a few steps further by connecting a to a water reservoir to pour the precise amount of water required to mix with the weight of the specific gypsum or investment material being used.