What Makes a Dirty Martini 'Filthy'?

One point of particular confusion: What's the difference between a plain old Dirty Martini and a Filthy Martini?
To put it in the simplest terms possible, a Filthy Martini takes the classy Dirty cocktail to Flavortown. Ordering a Martini “Extra Dirty” or “Filthy” adjusts the cocktail’s recipe to include a higher ratio of salty olive brine in the drink. The Filthy Martini hones in on the olive brine’s distinct taste in an otherwise Dirty Martini and turns it up to the max.

8 oz. pouch of olive brine, perfect for a dirty martini.

Filthy Dirty Martini Olive Brine

Dirty Martini Recipes: The Traditional and Filthy Variations

FILTHY® Premium Cocktail Mixers & Garnishes – Filthy

Dirty Martini Recipe - Cilantro Parsley

Extra-Dirty Martini Recipe (With Video + Step-by-Step)

The Best Dirty Martini Recipe With Olive Juice Tips

Filthy Dirty Martini - DIVERSE DINNERS

How to make a Dirty Martini - Spirits Kiosk

Filthy Dirty Martini – Heritage Distilling