TP TEA - One Bangkok
One Bangkok Entrance 3, Witthayu Rd, Lumphini, Pathum Wan, Bangkok 10330
Most bubble tea chains sell a format. TP TEA sells provenance. The Chun Shui Tang parentage is the only one in Bangkok's crowded milk-tea scene that traces back to the drink's actual origin point, and that matters if you care about the real thing versus a copy. The Pandan Custard Green Milk Tea is the one order that makes a case for why this location, specifically, is worth a detour.
Walk down to Floor B1 of One Bangkok's Parade Zone and the TP TEA counter sits inside one of the city's most polished retail corridors, a clean, backlit setup with the brand's white-and-green palette running across the menu board. The queue moves in order. Tea is brewed to order. The smell is unmistakably Taiwanese-style milk tea, warm and slightly grassy, nothing artificial about it.\n\nThe brand behind the counter has a specific history. Chun Shui Tang opened in Taichung in 1983. In March 1987, a staff member named Lin Hsiu Hui poured tapioca into a tea drink on a whim, and that accident became the formula the world now calls bubble milk tea. TP TEA was founded in July 2005 as Chun Shui Tang's direct subsidiary, carrying the same tea sourcing principles into a format built for urban retail across nine markets: Taiwan, China, Japan, Hong Kong, Singapore, Vietnam, Thailand, the United States, and Canada.\n\nThree drinks stand out at this location. The Signature Black Tea is the base case, a clean reference point for what the brand does with tea before any add-ons. The Tie Guan Yin Milk Tea layers a roasted oolong character against the milk base. The Pandan Custard Green Milk Tea is the Thailand-specific adaptation worth ordering: the custard settles at the bottom, the green tea runs pale jade above it, and the first sip pulls both together into something that reads distinctly Southeast Asian without losing the Taiwanese structure underneath. Sweetness and ice levels are adjustable on every order.\n\nDelivery and takeaway are available alongside dine-in. One practical note: opening hours are not listed on the brand's official Thai channels, so if you are travelling from outside the One Bangkok complex, confirming hours in advance is worth the step.\n\nTP TEA entered Thailand in December 2020. The One Bangkok branch represents the brand's entry into Bangkok's premium mixed-use retail tier, placing a 20-year-old Taiwanese institution inside one of the capital's newest large-scale destinations on Witthayu Road.