Zest-O Calamansi Fruit Soda

Zest-O Calamansi Fruit Soda is a carbonated beverage that highlights the unique flavor of the calamansi, a citrus fruit native to the Philippines. The brand is a household name in the Filipino market, famously known for its pioneering pouch-style juice drinks before expanding into carbonated bottled sodas. It combines the tartness of real fruit juice with the refreshment of a sparkling drink.

The brand was founded by businessman Alfredo M. Yao in the early 1980s under Zest-O Corporation. The company's success began with the introduction of the first Doypack packaging in the Philippines, which revolutionized how juices were consumed locally. To this day, the brand remains under the stewardship of the Yao family and their corporate group, maintaining its status as a prominent Filipino-owned enterprise with manufacturing facilities primarily located across the Philippine islands to serve its domestic and export markets.