Do you need a Bartesian to make cocktails?

Of course you don’t.

You can dump tequila into sour mix anytime and call it a margarita.

But perhaps you’d like to make an espresso martini, a blackberry margarita, and also a Long Island Iced Tea?

The Bartesian is a sort of shortcut to a home bar, without having to store all the mixers—and a bit of a novelty.