Most dual coffee makers at least come with the facility to dispense hot water. In some cases, you may want to flush through a bit of water after brewing coffee to avoid getting residual coffee flavors in your tea. Machines that feature a steam arm can also be used for steaming milk for cocoa, hot chocolate, matcha or chai latte, or whatever else you may want. If you have tea drinkers in your household or workplace, you might want to opt for something like the Ninja CP307, which caters to them just as well as coffee lovers.