Red Sky Bar

Philtration

Philtration is an underground speakeasy located beneath a century-old house in Bangkok's Siam area. Once the workspace of Dr. Moh Mee, a traditional Chinese herbalist, the basement has been transformed into a stylish cocktail den blending history and creativity. The drinks menu features inventive concoctions infused with herbs, spices, and teas inspired by age-old remedies. The design combines vintage character with modern elegance through curved lines, warm lighting, preserved flooring, and intimate omakase-style bar seating, creating a sophisticated yet mysterious atmosphere where every cocktail comes with a story.