This has the groundwork for an interesting drink-mixin sim but it's currently in real rough shape unfortunately.
The biggest thing letting it down is the current approach to gameplay and the UI. Were it not for Krell's comment I wouldn't have been able to work out how to play at all.
There's also a game-killing bug where right-clicking a certain place causes the right side of the screen to turn black and renders the game unplayable.
Something to consider is to add simple labels to the bottles; just as an additional visual clue to let people know what drink is what without having to hover over them. Visual cues elsewhere might also help smoothen out gameplay a bit.
Overall, it's got a lot of potential and I'm curious what this would have ended up being had things gone better.