Nightlife District Pathum Wan

Philtration

Now open 18:00-01:00

Ratchathewi 9 Min Sukhumvit BTS
Siam 0.9 km Sukhumvit BTS

Uruphong 1km Si Rat Expressway

2 Soi Kasem San 3 - Bangkok

Hidden Bars

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Underground Herbal Cocktail Hideaway

This intimate basement bar blends traditional Thai herbal medicine with inventive cocktails, creating a unique narrative in each drink. Access requires navigating a secretive entrance, adding to its speakeasy charm. The atmosphere is cozy and dim, with classic jazz often setting the mood. A low ceiling and occasional feline visitor contribute to its quirky character, while spotless, vintage-style restrooms hint at a refined, bygone era.

AI Summary based on real rewviews (Jun 2026)

Nightlife
No. 24 of 45 in The Best Cocktail Bars in Bangkok 2026

319 Ratings (Sources: 1)

Reviews

If you love jazz, secret doors, and a bar with character (and an adorable cat wandering around), this place nails it. Just watch your head on the low beams—it’s intimate, stylish, and unlike anywhere else in the city.

Sunthon (2026)

Tucked away underground with a mysterious vibe, Philtration’s entrance might have you wandering for a minute, but the cozy atmosphere and smooth cocktails make it worth the hunt. Also, they’ve got parking, which is always a win in Bangkok.

Gianna (2026)

I’m fascinated by how this bar weaves traditional Thai herbal medicine into its drinks—it’s like sipping on history with every cocktail. Plus, the restrooms are shockingly elegant and spotless, giving off this old-world charm that you don’t see much these days.

Prasert Sisuk (2026)

Getting into Philtration feels like cracking a secret code, and once inside, the cocktails really impress with their unique flavors. The bartender was super knowledgeable and made the whole experience feel special, all while classic jazz played softly in the background. Definitely a spot to return to.

Somphit (2026)

The reviews come from gurulist.net and various other platforms. We aim to highlight the positive aspects of each location, but we also note minor flaws. Keep in mind that reviews reflect personal opinions — what one person may not like, another might love.
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