This is the Ito En O~i Ocha Koicha Premium Strong, a formulation that amplifies the depth of the standard Oi Ocha Koicha while incorporating 340 mg of gallated catechins intended to support reductions in both visceral and subcutaneous body fat.
The beverage presented a translucent golden-brown hue and a pronounced umami-driven aroma with a clean underlying sweetness. When consumed chilled, it opened with a rich, rounded vegetal character typical of concentrated green tea, supported by a noticeable natural sweetness. A gentle bitterness began to form toward the back of the tongue, developing rapidly into a firm, full bitterness by the end of the sip, before settling into a moderate lingering astringency in the aftertaste. The mouthfeel started smooth and rounded, gradually tightening as the catechin-driven bitterness took hold.
Overall, a strong green tea, offering clarity of flavour and a pronounced finish that will appeal to those who prefer a bolder profile.
This Ito En O~i Ocha Koicha Premium Strong contained 470 mL. It was produced in Japan and purchased in Sydney, Australia in 2025.