When we premix the products at the manufacturer what we find is the wetting agent, if it's mixed with a rooting agent, (close ups of healthy grass)

At a local 7-Eleven, he noticed the Slurpee machine, and he realized he could premix the margarita and the bartenders would simply pull the lever to dispense it.

In the dialog premix the re-recording mixer does preliminary processing, including making initial loudness adjustments and reducing environmental noise that the on-set microphone picked up during the shooting of the scene.

My advice: premix gin and vodka martinis in distinctly shaped pitchers, so that you can distinguish between the two quickly, and ice the drinks in a shaker as the orders come in.