A filthy martini is essentially an ultra‑savory dirty martini made with a lot of olive brine, giving it a cloudy look and very salty, briny flavor. It’s usually built on the classic martini base of gin or vodka with vermouth, but the amount of brine is pushed so far that it dominates the drink.

Quick Scoop

  • A filthy martini is a martini with extra olive brine, often enough that it rivals or even replaces the vermouth.
  • The drink is very savory, strongly olive‑forward, and noticeably murky in appearance.
  • Some bars use “filthy” informally for “extra dirty,” while a few define a Filthy Martini differently (for example, as a martini garnished with caperberries instead of olives).

How it’s usually made

  • Base: 2–2.5 oz gin or vodka.
  • Vermouth: sometimes a small splash, sometimes none at all because the brine overwhelms it.
  • Olive brine: often around 1 oz, or enough that the drink tastes intensely salty and looks visibly cloudy.

Dirty vs filthy

  • Dirty martini: classic martini plus a modest splash of olive brine for light cloudiness and gentle savoriness.
  • Filthy martini: significantly more brine, pushing the flavor into very bold, saline, “for olive lovers only” territory.

Information gathered from public forums or data available on the internet and portrayed here.