Citrates are an approximation of sour mix: sugar and citrus combined, but in a form that is predictable, reproducible, and stable. They start with an oleo saccharum (citrus peels and sugar), then add other acids and mouthfeel agents.
I did a podcast interview with Brian of Bartender Journey and it's now online. Thirty glorious minutes of me talking about things I often write about. But out loud! Check it out here. I come in at around the six minute point.
A pot still shaped like a dragon and a scientific reinvention of the ancient dunder pit process? Only at Lost Spirits Distillery in California.