Minn. R. 1550.1600
DISPENSERS AND CONTAINERS
All carbonated or still beverages, except those which are offered for sale in sealed bottles, must be stored in closed dispensers or containers fitted with suitable faucets, spigots, or pumps. The use of open bowls is prohibited. It shall be unlawful to dispense carbonated or still beverages with a spoon, ladle, or other means, but the beverage must be drawn through a faucet, spigot, or pump directly into a sterile glass tumbler or paper cup. Dispensers and/or storage containers for storing and dispensing carbonated or still beverages shall be of either glass, stoneware, or acid resistant steel construction.