I tried my best to make the game "I don't drink" friendly without just giving a book of solutions.
I didn't use a timer so people can look up drinks, I made it's so that you can just make up drinks without penalty except not getting tips, etc.
I made it so the customer also drops small hints on what's was wrong with the drink. They will say things like "I've never had X made with Y" or "If this had Z it would be perfect"
Once you get a drink correct, the ingredients highlight everytime it's ordered after that.
You also can just straight up serve only poison with 0 penalty.
On the audio, yeah... The options menu pops up after the opening scene. I did my best to balance the audio before that without interrupting the story beat/ scene.