Kali-fal was a very aromatic Romulan beverage, that was said to forcibly open one's sinuses well before the first sip.
In 2374, Captain Benjamin Sisko offered Senator Vreenak a glass of what was called a "fair approximation" of replicated kali-fal. (DS9: "In the Pale Moonlight")
Kali-fal may, in fact, be the Romulan (and "proper") name for Romulan ale.
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