salt solution
Just like in cooking and baking, salt can make cocktails taste better. It can bring out more flavor and also be the star of the show. Think salt rims, margaritas and a big bowl of salty, buttery popcorn. Bartenders are used to working with liquids. Adding pinches of salt is not convenient or particularly accurate—so it's pretty common for bars to use salt solutions.
There are two main options. A 10% solution in bitters bottles and a 20% solution in dropper bottles. One dash varies greatly between bitters bottles and users, so I will leave that for you to explore. Every cocktail recipe on Outlet F&D with salt will have pinches as an estimate and drops of 20% solution for precision. How do I make a 20% by weight salt solution? Dissolve one part salt in 4 parts water by weight. Salt solution solved, pun intended.