Oishi Green Tea Original from Thai Beverage PCL - bottled calm with mass-market reach

Reviewed: ad hoc news New Release & Launch desk. Edited and checked on 2026-06-30, 05:12. Details in the imprint.

The Oishi Green Tea Original bottle sits cold in the hand, pale green label against clear PET and a soft rustle of shrink-wrap when you twist the cap. One sip and the sweet, slightly grassy taste is closer to a mall café than a traditional tea house.

Sweet green tea in PET

Oishi Green Tea Original from Thai Beverage PCL is a ready-to-drink green tea, typically sold in 380 ml and 500 ml PET bottles in Thai convenience stores and supermarkets. The drink blends green tea extract with sugar, delivering a mild, friendly flavor instead of a bitter brew.

The sweetness and low bitterness make it a bridge product for younger drinkers moving from sodas to tea-based drinks. On a crowded shelf next to colas and energy drinks, the Oishi logo signals café culture, while the transparent bottle shows a clean, light amber liquid.

What the product targets

Product managers at Thai Beverage position Oishi Green Tea Original squarely in the mass-market refreshment segment, aimed at daily, casual consumption rather than premium tea ritual. It is priced so that a student can grab a bottle along with a snack without thinking twice.

In practice, that means stable recipes and reliable nationwide distribution. Commuters in Bangkok can buy the same flavor profile at a BTS station kiosk as shoppers in provincial hypermarkets, with chillers filled with rows of identical green caps and labels.

Cafe brand on the label

The Oishi name started in restaurant and café operations before expanding into bottled drinks, and that heritage still shapes the product. When Somchai Bousaba, an early Oishi executive, pushed bottled green tea, the idea was to carry the café experience into supermarket aisles.

That café link gives the brand a self-assured feel. Consumers often associate the logo with sit-down meals and sushi chains, then transfer that trust to a bottled drink they pick up in a 7-Eleven, making repeat purchases more likely even without heavy promotion.

Flavor profile and mouthfeel

On the tongue, Oishi Green Tea Original is smooth more than sharp. The first impression is sugar, then a gentle green tea note without the astringent edge that traditional loose-leaf brews can carry. The mouthfeel is light, with low viscosity and no noticeable stickiness after swallowing.

Served straight from a refrigerator, condensation beads on the plastic, and the drink goes down quickly, closer to flavored water than thick sweet tea. That makes it practical for hot-season hydration, though some green tea purists may find the flavor too tame.

Packaging, sizes and use cases

Thai Beverage sells Oishi Green Tea Original mainly in single-serving PET formats, optimized for grab-and-go convenience and impulse purchases near checkouts. The bottle is easy to hold, with a slight waist that fits a typical adult hand and a screw cap that opens with a short, clean crack.

There are also larger multi-serve bottles for home use and promotions, but the core business sits in small bottles riding the chilled chain of convenience stores, petrol stations and hypermarkets. That network allows the drink to sit within arm’s reach of millions of daily shoppers.

Competitive shelf position

On Thai shelves, Oishi Green Tea Original shares space with rival brands from other beverage groups, including both domestic and Japanese names. The category is crowded, but Oishi’s early-mover status and strong restaurant brand keep its share consistent, even as new flavors appear around it.

For Thai Beverage, the product acts as a quiet volume driver. Margins per bottle are lower than spirits, but stable demand smooths earnings across quarters and diversifies away from regulated alcohol sales, which investors tracking the company appreciate.

Environmental and health angles

The reliance on single-use PET packaging is a familiar sore point. Thai Beverage, like peers, faces growing pressure from regulators and consumers to lift recycling rates and cut plastic use, especially as chilled drink consumption rises with urbanization.

On the health side, the sugar content makes Oishi Green Tea Original more of a soft drink with tea notes than a pure health beverage. Consumers watching sugar intake often switch to the less-sugar or zero-sugar variants in the Oishi line, which share similar branding but modify the formula.

Role within Thai Beverage and shares

Within Thai Beverage, Oishi Green Tea Original sits in the non-alcoholic ready-to-drink portfolio alongside energy drinks, water and other teas, balancing the group’s heavier exposure to spirits and beer. It contributes to brand breadth and helps Thai Beverage reach younger and more health-aware consumers.

Overall, the steady performance of Oishi ready-to-drink teas is one of many factors behind Thai Beverage PCL shares (ISIN TH0999010Z11), which are listed on the Stock Exchange of Thailand and trade in Thai baht as part of a broader beverage and food story.

This article was AI-assisted and editorially reviewed. Product information without guarantee; prices and availability may change at short notice. No investment advice, no buy or sell recommendation. Stock-market transactions involve risks up to total loss.